Forest Highways

Below are listings for every known Forest Highway in Michigan, signed and unsigned, broken down by individual National Forest. For complete details and history on these routes, see the Forest Highways page.

Jump to: Hiawatha N.F. (East) | Hiawatha N.F. (West) | Huron N.F. | Manistee N.F. | Ottawa N.F.

Hiawatha National Forest (East Unit)
	Western Terminus:	Western forest boundary along Worth Rd in Mackinac Co, just west of Campground Rd (FR-3108)
	Eastern Terminus:	M-123/Tahquamenon Tr northwest of Moran
	Former? Length:	5.8 miles
	Notes:	FH-2 followed Worth Rd for its entire length. Interestingly enough, Worth Rd was an early route of US-2 before the current shoreline routing was completed in the 1930s. FH-2 was labeled on the most recent National Forest Visitor Map, but is not referred to in the 2012 Hiawatha National Forest Motor Vehicle Use Maps (MVUMs). The MVUMs specifically include all official road designation numbers, so its exclusion would seem to indicate FH-2 is apparently no longer an official Forest Highway route. This assumption has not been officially confirmed, however, as it may also have been a GIS labeling error during the map creation process.
		An April 2003 Hiawatha National Forest resource document titled "Transportation System" refers to FH-2 as "FH-57 Worth Rd" and gives its type as "Forest Hwy." It's unclear whether this is an error, as H-57 has been the unsigned Forest Highway designation for Intercounty Highway H-57.

	Western Terminus:	Western forest boundary along H-40 west of Trout Lake
	Eastern Terminus:	Eastern forest boundary along H-40 at Fibre
	Former? Length:	20.9 miles
	Notes:	FH-8 followed H-40 for its entire length. For this reason, FH-8 was not signed while Intercounty Highway route H-40 is. FH-8 was labeled on the most recent National Forest Visitor Map and on the 2010 Hiawatha National Forest Motor Vehicle Use Map (MVUM) and on other 2010 USFS documents, but is not referred to in the 2012 Hiawatha NF MVUM. The MVUMs specifically include all official road designation numbers, so its exclusion would seem to indicate FH-8 is apparently no longer an official Forest Highway route. This assumption has not been officially confirmed, however, as it may also have been a GIS labeling error during the map creation process.

	Southern Terminus:	Southern terminus of county-designated H-63 (Mackinac Tr) at BL I-75 north of St Ignace -OR- St Ignace (see second note below)
	Northern Terminus:	Forest boundary at the Mackinac/Chippewa Co line along H-63/Mackinac Tr
	Length:	19.9 miles -OR- 24.2 miles (see second note below)
	Notes:	FH-26 follows one or more existing route-marked highways (H-63/Mackinac Tr and, possibly, BL I-75) for its entire length and, because it runs concurrently with an alread-signed route, FH-26 is not itself signed.
		On the 2012 Hiawatha National Forest Motor Vehicle Use Maps (MVUMs)—MVUMs specifically include all official road designation numbers within a National Forest—the designation of FH-26 seems to continue from its assumed southern terminus at jct H-63 & BL I-75 north of St Ignace southerly via BL I-75 into St Ignace itself. It is unclear whether this was a simple GIS labeling error or if FH-26 does extend into St Ignace.

	Western Terminus:	M-123 at the western end of the I.L. "Curley" Lewis Memorial Hwy about halfway between Eckerman and Paradise
	Eastern Terminus:	Eastern forest boundary at the western edge of Bay Mills (cnr Lakeshore Dr & Tower Rd)
	Length:	40.8 miles
	Notes:	FH-42 follows the Whitefish Bay National Scenic Byway for its entire length, which runs along the I.L. "Curley" Lewis Memorial Hwy and Lakeshore Dr. At last check, FH-42 is not signed. The original name for the byway in the late-1960s and into the 1970s was the Big-Sea-Water Scenic Highway, as the portion of the Hiawatha National Forest along the southern shore of Whitefish Bay was to have been developed as the 64,000-acre "Big-Sea-Water National Forest Recreation Area." The coordinated Recreation Area was never fully developed, however, due to federal budget constraints and some pushback by local residents.
		From a previous "America's Byways" website, a description of the route: "Along the shores of Lake Superior's Whitefish Bay is a segment of road set aside for the enjoyment of touring visitors. The Whitefish Bay National Forest Scenic Byway is a 'Highway to the Past' that passes vast expanses of clear water and miles of secluded, sandy beaches. Many interesting historic and cultural features along this route are waiting for you to explore."
		I.L. "Curley" Lewis of Paradise, the namesake of the westernmost portion of the byway (the segment beginning at M-123 and continuing easterly toward Naomikong Point), was the chairman of the Scenic Highway Committee, a group charged with helping to bring the byway itself to fruition back in the late-1960 and into the 1970s. MDOT notes, "Irwin L. Lewis was a local politician born in Alma whose efforts in promoting and lobbying for scenic highway tourism resulted in the building of several roads in the eastern Upper Peninsula in the mid-1900s. The Whitefish Bay scenic route is one of his efforts." Lewis spent 18 years as a Chippewa Co Road Commissioner, 16 years as Whitefish Twp Supervisor and owned several businesses over the years.
	History:	1963 – The engineering report for the entirety of the route from M-123 on the west to Brimley on the east is issed by the State Highway Dept and the U.S. Forest Service. The State Highway Dept reports a desire to begin construction on the shoreline highway at some point in 1966.
		1966 (Mar 16) – A proposed alignment for the first two miles of the shoreline route between Brimley and M-123 are announced by State Highway Director Howard E Hill. The plan is developed jointly by the State Highway Dept and the U.S. Forest Service. The segment consists of a 24-foot wide, gravel-surfaced highway and its construction will be paid for solely by the Forest Service. Bids are scheduled to be taken for this first short segment by the end of the year.
		1966 (mid-April) – Surveying on a six-mile segment of the so-called "Big-Sea-Water Drive" in the Naomikong Point area north of Strongs by State Highway Dept crews marks the beginning on work on the shoreline drive. Plans are to begin construction later in the year on the first three-mile new terrain segment. East of the Naomikong Point area, the new drive will largely use the existing Lakeshore Dr alignment into Brimley. From Naomikong Point westerly, much of the new highway will be built on a new alignment.
		1969 (Aug 6) – A public meeting is held in Brimley to solicit input into the westernmost portion of the route of FFH-42 between the segment at Naomikong Point nearing completion and M-123. Three primary routes are outlined, the northernmost of which runs closest to the Whitefish Bay shoreline, the second just to the south and the third running almost due westerly, partially along existing roadways, to meet M-123 near East-West Rd. The first segment of the new-alignment portion of the highway in the Naomikong Point area is completed by the end of the year.
		1972 (Oct) – A three-mile segment of the "Big-Sea-Water Drive" west of the section finished in 1969 is completed from East-West Rd easterly in the area of Roxbury Creek, Roxbury Pond and Ankodosh Creek. A final connection from this segment westerly to M-123 is currently in the planning stages.
		1981 – The shoreline drive that he helped make a reality is officially named the "I.L. 'Curley' Lewis Highway" by the Michigan Legislature in HCR 401 of 1981.
		2001 – Just twenty years after designating a portion of the Whitefish Bay National Scenic Byway as the "I.L. 'Curley' Lewis Highway," the Michigan Legislature actually repeals the designation due largely to incompetence on the part of Legislative staff members. The reason given for repealing the designation is that it is "located without specification in the Upper Peninsula"—meaning Legislative staff members are unable to locate the highway in question named for Mr. Lewis. Just how much effort is put into trying to ascertain which roadway segment was covered by the designation is unclear, but it becomes one of seven memorial designations to not be included in the re-codification of memorial highways in the State of Michigan as part of Public Act 142 of 2001.
	Weblinks:	• Whitefish Bay National Forest Scenic Byway – information page from the Hiawatha Naitonal Forest website.
		• Whitefish Bay Scenic Byway – archived from the America's Byways national website.
		• Whitefish Bay Scenic Byway – a page on the Scenic Drives USA website.
		• Why You MUST Visit The Upper Peninsula In The Fall: Whitefish Bay Scenic Byway 5K – a YouTube video by Chris Harden posted October 27, 2021

	Southern Terminus:	Southern terminus of Intercounty Highway route H-57 (Brevort Lake Rd) at US-2 between St Ignace and Brevort
	Northern Terminus:	Northern terminus of H-57 at M-123/Tahquamenon Tr at Allenville south of Moran
	Former? Length:	7.6 miles
	Notes:	FH-57 followed H-57/Bevort Lake Rd for its entire length and, because it ran concurrently with an alread-signed route, FH-57 was not itself signed. It is assumed FH-57 derived its route designation from the concurrent H-57.
		FH-57 was labeled on the most recent National Forest Visitor Map, but is not referred to in the 2008-09, 2010 and 2012 Hiawatha National Forest Motor Vehicle Use Maps (MVUMs), instead being labeled only with its H-57 designation. The MVUMs specifically include all official road designation numbers, so its exclusion would seem to indicate FH-57 is apparently no longer an official Forest Highway route. This assumption has not been officially confirmed, however, as it may also have been a GIS labeling error during the map creation process.

	Southern Terminus:	M-28 at Strongs Corners south of Strongs
	Northern Terminus:	Uncertain: Likely at FH-42/Lakeshore Dr, 10.3 miles north of Strongs
	Former? Length:	10.3 miles
	Notes:	FH-83 was not signed in the field and the designation only appears on official forest maps along Salt Point Rd starting at M-28 and proceeding northerly. From the official maps, it is unclear where FH-83 terminates on the northern end, although it can be assumed the logical terminus would be at FH-42/Lakeshore Dr.
		FH-83 was labeled on the most recent National Forest Visitor Map, but is not referred to in the 2008-09, 2010 and 2012 Hiawatha National Forest Motor Vehicle Use Maps (MVUMs), instead being labeled as FR-3159. The MVUMs specifically include all official road designation numbers, so its exclusion would seem to indicate FH-83 is apparently no longer an official Forest Highway route. This assumption has not been officially confirmed, however, as it may also have been a GIS labeling error during the map creation process.

	Western Terminus:	M-134 in central Mackinac Co, approximately 1.5 mi east of I-75
	Eastern Terminus:	Eastern forest boundary at the Marquette/Clark Twp line, northwest of Hessel
	Length:	7.9 miles
	Notes:	At last check, FH-84 does not seem to be signed in the field and runs along St Ignace Rd in its entirety. The route is specifically labeled as "FH-84" on the 2012 Hiawatha National Forest Motor Vehicle Use Map (MVUM).

	Southern Terminus:	M-123/Tahquamenon Tr (cnr Charles Moran Rd) at Moran
	Northern Terminus:	H-40 (Unsigned FH-8) approximately 5 miles west of Fibre
	Length:	14.5 miles
	Notes:	FH-85 runs east from M-123 along Charles Moran Rd for about ¼ mile, then turns north to follow East Lake Rd for its entirety to H-40/FH-8. At last check, FH-85 is not signed in the field.
		On the 2008-09 and 2010 Hiawatha National Forest Motor Vehicle Use Maps (MVUMs), FH-85 was labeled as FR-3119, whereas on the 2012 edition, it was labeled as both "East Lake Rd" (its official county road name) and "FH-85." It has been shown as FH-85 on the official forest visitor map for several years, however.

	Southern Terminus:	M-28 one mile west of Raco
	Northern Terminus:	FH-42/Lakeshore Dr at Dollar Settlement
	Former? Length:	6.3 miles
	Notes:	FH-87 follows Ranger Rd between M-28 and Lakeshore Dr in its entirety. At last check, FH-87 is not signed in the field.
		FH-57 was labeled on the most recent National Forest Visitor Map, but is not referred to in the 2008-09, 2010 and 2012 Hiawatha National Forest Motor Vehicle Use Maps (MVUMs), instead being labeled as FR-3154. The MVUMs specifically include all official road designation numbers, so its exclusion would seem to indicate FH-87 is apparently no longer an official Forest Highway route and instead designated FR-3154. This assumption has not been officially confirmed, however, as it may also have been a GIS labeling error during the map creation process. Interestingly, the Forest Service uses "FH-87" in its directions to the Monocle Lake Campground on its website!

Hiawatha National Forest (West Unit)
	Southern Terminus:	In Nahma at the intersection of CR-499/EE.25 Rd, CR-495/Main St & CR-497/River St-GG Rd -OR- US-2 at Nahma Junction (see second note below)
	Northern Terminus:	Jct M-28/M-94 & H-13 at Wetmore, southeast of Munising
	Length:	39.9 miles -OR- 35.2 miles (see second note below)
	Map:	Route Map of FFH-13
	Notes:	FH-13 is the only signed Forest Highway in either unit of the Hiawatha National Forest (although there are other unsigned routes) and is rather well-marked in its entirety. However, FH-13 shares its route with Intercounty Highway H-13, which is rather poorly signed throughout. In fact, for many years the only references to H-13 is along US-2 at Nahma Junction and along M-28/M-94 at Wetmore. Delta Co does not recognize the existence of H-13, while the Alger Co Road Commission has traditionally not had the resources to post the necessary signs along the route. In 2005, several new H-13 route markers appeared in the Munising area, but H-13 itself is now unsigned along M-28/M-94!
		On the 2012 Hiawatha National Forest Motor Vehicle Use Map (MVUM), the portion of FH-13 south of US-2 is labeled as Co Rd 497 and not as part of FH-13. The MVUMs specifically include all official road designation numbers, so its exclusion would seem to indicate FH-13 apparently no longer exists south of US-2. This assumption has not been officially confirmed, however, as it may also have been a GIS labeling error during the map creation process.
	History:	1934 – The northernmost 2.57 miles of drainage, grading and 16 feet of coarse gravel surfacing on FH-13 from Whitmore southerly is completed and opened to traffic. This first project on FH-13 cost $12,755 to complete.
		1935–1937, 1939–1940 – Various segments of FH-13 are constructed, generally beginning on the northern end closest to Wetmore with segments completed heading southerly into Delta Co. Construction on the highway is undertaken under the auspices of the Cartwright Grant and financed jointly by the federal government and Michigan State Highway Dept.
		1941 (Nov) – The final segments of FH-13, an 8.69-mile segment from Co Rd 442 southerly to US-2 at Nahma Junction in Delta Co and a 1.24-mile segment from M-28 at Wetmore in Alger Co southerly, are completed and the entire FH-13 route is opened to traffic as a gravel-surfaced highway. Within a year, civic leaders begin agitating for hard-surfacing for FH-13, as its popularity (and an alleged lack of maintenance) start causing the new highway to deteriorate.
		1947–1948 – An oil-aggregate surface is applied to the entire length of FH-13. The segment from US-2 at Nahma Jct in Delta Co northerly to the Town Lake/Pete's Lake area in Alger Co is surfaced during 1947 and the remaining 11 miles from there northerly to M-28 at Wetmore are completed on Sept 26, 1948, although the finishing touches—including pavement markings and shoulder stablization—would be completed later in the fall.
		1972 – The Intercounty Highway designation H-13 is concurrently designated along FH-13 from US-2 at Nahma Junction northerly to M-28/M-94 at Wetmore southeast of Munising.
		1991 – The 1917-era Co Rd 497 bridge spanning the Sturgeon River less than one mile north of the community of Nahma in Delta Co is closed to traffic due to structural inadequacies. Traffic to Nahma from US-2 at Nahma Junction is detoured via HH.5 Rd (FR-8263) with most Nahma-bound traffic using Co Rd 499 from the Saint Jacques on the west and Co Rd 495 from Isabella on the east.
		2006 – The 1917 bridge crossing the Sturgeon River just north of Nahma, which has been closed to traffic for 15 years, is sold and removed from its abutments, which remain.
		2007 (June 1–Oct 15) – A new Sturgeon River bridge on Co Rd 497, replicating the design and appearance of the original 1917 structure, is constructed and opened to traffic in the fall. Co Rd 497 is once again open to traffic between US-2 at Nahma Junction and Nahma for the first time in 16 years.
	Weblinks:	• H-13 Route Listing
		• Sturgeon River Bridge Replacement – from the Interagency Wild and Scenic Rivers Coordinating Council
		• Forest Highway 13 Bridge – from HistoricBridges.org: "A remarkably unaltered and relatively early example of a curved t-beam in Michigan."

	Southern Terminus:	Peninsula Point Lighthouse interpretive area, south of Stonington
	Northern Terminus:	Cnr US-2 & CR-513, 3 mi east of Rapid River
	Former Length:	17.8 miles
	Notes:	FH-29, according to some sources, is or was the Forest Highway designation for Delta Co CR-513 which runs down the western side of the "Stonington Peninsula" separating Big and Little Bays de Noc, east of Escanaba and Gladstone. CR-513 was referred to as being "Forest Highway 29" in press releases and news articles from October 2009, but other references to it as such have not been located. It is assumed this may no longer an active Forest Highway route designation.

	Southern Terminus:	CR-442 northeast of Cooks in western Schoolcraft Co
	Northern Terminus:	M-94 & CR-437 east of Steuben in northwestern Schoolcraft Co
	Length:	21.0 miles
	Notes:	FH-43 is an unsigned Forest Highway in the Manistique Ranger District in the West Unit of Hiawatha National Forest. From its southern terminus at CR-442, it runs northerly via CR-437/Thunder Lake Rd to CR-445, then easterly through the community of Steuben to a northern terminus at M-94.
		FH-43 is signed as County Rd 437 (CR-437) throughout.

Huron National Forest
	Southern Terminus:	Southern forest boundary at the Oscoda/Ogemaw Co line (cnr CR-487/Mapes Rd & County Line Rd) northwest of Rose City
	Northern Terminus:	M-72/Ryno Rd (cnr of CR-487/Mapes Rd), 5.5 miles west of Mio
	Length:	9.6 miles
	Notes:	FH-1 runs along CR-487/Mapes Rd for its entire length.
		All indications seem to indicate that no Forest Highways are signed in the field in the Huron National Forest, thus it should be assumed this route is unsigned. Also, no Forest Highways are labeled on the 2012 Huron National Forest Motor Vehicle Use Map (MVUM), which indicate all roads open to motor vehicle use in the Forest, so it is unclear whether any of the Huron National Forest FHs are still active designations.

	Southern Terminus:	Jct FH-5 in South Branch at the cnr of Heath Rd & South Branch-County Line Rd
	Northern Terminus:	FH-10 at cnr of CR-498/Mack Lake Tr & CR-604/Curtisville Rd in Oscoda Co's Mentor Twp
	Length:	10.7 miles
	Notes:	FH-3 runs along Mack Lake Tr (also designated CR-489 in Oscoda Co) for most of its entire length.
		All indications seem to indicate that no Forest Highways are signed in the field in the Huron National Forest, thus it should be assumed this route is unsigned. Also, no Forest Highways are labeled on the 2012 Huron National Forest Motor Vehicle Use Map (MVUM), which indicate all roads open to motor vehicle use in the Forest, so it is unclear whether any of the Huron National Forest FHs are still active designations.

	Southern Terminus:	Jct FH-3 in South Branch at the cnr of Heath Rd & South Branch-County Line Rd
	Northern Terminus:	FH-8/Bamfield Rd at Curtisville, 7.5 mi west of Glennie
	Length:	7.4 miles
	Notes:	FH-5 follows South Branch Rd/County Line Rd northerly from South Branch along the Iosco/Ogemaw Co line, which turns into just South Branch Rd as it runs along the Oscoda/Alcona Co line. FH-5 then turns east for a mile along Michaud Rd, then north again to follow Curtisville Rd to its northern terminus.
		All indications seem to indicate that no Forest Highways are signed in the field in the Huron National Forest, thus it should be assumed this route is unsigned. Also, no Forest Highways are labeled on the 2012 Huron National Forest Motor Vehicle Use Map (MVUM), which indicate all roads open to motor vehicle use in the Forest, so it is unclear whether any of the Huron National Forest FHs are still active designations.

	Western Terminus:	FH-1 (at cnr CR-487/Mapes Rd & CR-488/Valley Rd) in southwestern Oscoda Co
	Eastern Terminus:	M-33 at the cnr of CR-488/Valley Rd, 7-1/3 miles south of Mio
	Length:	5.1 miles
	Notes:	FH-5 follows CR-488/Valley Rd for its entire length.
		All indications seem to indicate that no Forest Highways are signed in the field in the Huron National Forest, thus it should be assumed this route is unsigned. Also, no Forest Highways are labeled on the 2012 Huron National Forest Motor Vehicle Use Map (MVUM), which indicate all roads open to motor vehicle use in the Forest, so it is unclear whether any of the Huron National Forest FHs are still active designations.

	Southern Terminus:	FH-8/Bamfield Rd (at cnr AuSable Rd) about 3 miles west of Glennie
	Northern Terminus:	M-65/M-72 at cnr F-32/Aspen Alley Rd just south of Curran
	Length:	11.3 miles
	Notes:	FH-7 follows AuSable Rd northerly from FH-8/Bamfield Rd, on the east side of the Alcona Pond and AuSable River to F-32/FH-12. From there, FH-7 joins with Intercounty F-32 and continues northeasterly along Aspen Alley Rd to its northern terminus at M-65/M-72.
		All indications seem to indicate that no Forest Highways are signed in the field in the Huron National Forest, thus it should be assumed this route is unsigned. Also, no Forest Highways are labeled on the 2012 Huron National Forest Motor Vehicle Use Map (MVUM), which indicate all roads open to motor vehicle use in the Forest, so it is unclear whether any of the Huron National Forest FHs are still active designations.

	Western Terminus:	Cnr FH-5/Curtisville Rd & Bamfield Rd at Curtisville
	Eastern Terminus:	M-65 & Bamfield Rd in Glennie
	Length:	7.3 miles
	Notes:	FH-8 follows Bamfield Rd for its entire length.
		All indications seem to indicate that no Forest Highways are signed in the field in the Huron National Forest, thus it should be assumed this route is unsigned. Also, no Forest Highways are labeled on the 2012 Huron National Forest Motor Vehicle Use Map (MVUM), which indicate all roads open to motor vehicle use in the Forest, so it is unclear whether any of the Huron National Forest FHs are still active designations.

	Western Terminus:	M-33 at cnr CR-604/Curtisville Rd, 6 mi south of Mio
	Eastern Terminus:	FH-7/AuSable Rd in western Alcona Co
	Length:	16.5 miles
	Notes:	FH-10 follows CR-604/Curtisville Rd easterly from M-33 in Oscoda Co, then turns northeasterly along 4001 Rd (also possibly known as Au Sable Valley River Rd, Au Sable River Rd, or FR-4001) and into Alcona Co to its eastern terminus.
		All indications seem to indicate that no Forest Highways are signed in the field in the Huron National Forest, thus it should be assumed this route is unsigned. Also, no Forest Highways are labeled on the 2012 Huron National Forest Motor Vehicle Use Map (MVUM), which indicate all roads open to motor vehicle use in the Forest, so it is unclear whether any of the Huron National Forest FHs are still active designations.

	Western Terminus:	M-33/M-72 at jct F-32/CR-600/McKinley Rd just north of downtown Mio
	Eastern Terminus:	FH-7 at cnr AuSable Rd & Aspen Alley Rd southwest of Curran
	Length:	16.4 miles
	Notes:	FH-12 follows Intercounty Highway F-32 (which is also designated CR-600 in Oscoda Co) for its entire length.
		All indications seem to indicate that no Forest Highways are signed in the field in the Huron National Forest, thus it should be assumed this route is unsigned. Also, no Forest Highways are labeled on the 2012 Huron National Forest Motor Vehicle Use Map (MVUM), which indicate all roads open to motor vehicle use in the Forest, so it is unclear whether any of the Huron National Forest FHs are still active designations.

Manistee National Forest
Please Note: It was previously believed there were no designated Forest Highways in the Manistee National Forest, as none areindicated on official maps of the forest. However, evidence of two have surfaced via references to various improvement projects along those roads. One source also states there are "215 miles of Forest Highway" in the Manistee N.F., although it is unclear if those roadways have been assigned official Forest Highway route designations.
	Eastern Terminus:	Unknown (See notes below.)
	Western Terminus:	Unknown (See notes below.)
	Length:	Unknown (See notes below.)
	Notes:	At present, few details on FH-26 have been uncovered. It was referred to in documents describing a stream crossing project and the only loctional information provided was that FH-26 ran along Pierce Dr in Newaygo County. When more information on this route is located (or provided), it will be added here.
		There are no known posted Forest Highway routes in the Manistee National Forest. Assuming FH-26 exists, it would clearly be an unsigned route designation.

	Southern Terminus:	Unknown (See notes below.)
	Northern Terminus:	Unknown (See notes below.)
	Length:	Unknown (See notes below.)
	Notes:	At present, few details on FH-37 have been uncovered. It was referred to in documents describing a stream crossing project and the only loctional information provided was that FH-37 is located in Wexford County. One assumption could be that the FH-37 designation corresponds to the portion of M-37 running through the Forest, although that would onluy be an assumption and may be completely incorrect. When more information on this route is located (or provided), it will be added here.
		There are no known posted Forest Highway routes in the Manistee National Forest. Assuming FH-37 exists, it would clearly be an unsigned route designation.

Ottawa National Forest
	Southern Terminus:	Wisconsin state line (the southern forest boundary) in southwestern Iron Co, at a connection with WI STH-17
	Northern Terminus:	M-38 along the Ontonagon/Houghton Co line east of Mass City and Greenland
	Length:	52.4 miles
	Map:	Route Map of FFH-16
	Notes:	FH-16 is the only signed Forest Highway in the Ottawa National Forest and is reasonably well-marked in its entirety. However, a long running error on the Official Michigan Highway Map issued by the Michigan Dept of Transportation has resulted in this highway being marked as Intercounty Highway route "H-16" on most commerical maps today. It is assumed MDOT was attempting to symbolize the existence of FH-16 using the erroneous "H-16" marker on the map. This route is in no way marked as Intercounty Highway "H-16" in the field, nor has it ever been.
		In 1983, a new Intercounty Highway route debuted on the Official Michigan Transportation Map running along Federal Forest Highway 16 (FH-16) from US-2 west of Iron River northerly to M-28 at Kenton. This was odd for several reasons. First, FH-16 itself runs from the Wisconsin state line well south of US-2 northerly to M-38 between Nisula and Greenland, well north of Kenton. Second, Iron and Houghton Counties do not participate in the Intercounty Highway system. Two years later, all traces of "H-16" were removed from the map for the 1985 issue, but this never-posted, never-designated route would not stay gone for long.
		In 1992, MDOT re-added the phantom "H-16" back to its Official Michigan Transportation Map, this time coinciding with the entire length of FH-16, thereby verifying the theory they were attempting to show the route of FH-16 and not "H-16." Also, "H-16," since it is an even-numbered designation, would run east-west in southern Delta, Schoolcraft and/or Mackinac Counties and east of US-41 which is the "G/H" dividing line for Intercounty Highways in the Upper Peninsula. This error has survived now for over two decades and, as such, now appears on most commercially-produced maps and road atlases which use the Official Michigan Transportation Map as a primary source, including Rand McNally, Universal Map, MapArt, MapMoblity, G.M. Johnson Maps, and many of the on-line mapping services when they first debuted. However, as of the 2020s, Google Maps seems to (somewhat) more properly label this route as "NF-16" and "Federal Forest Highway 16" in Iron Co, a rather odd "Nat for Dev Rd 16 S" and "Nat for Dev Rd 16 N" in southern Houghton Co before going off the rails somewhat with "County Rd FF 16" then back to "NF-16" before terminating at M-38. All of these names for a road which could just be correctly labeled as "Federal Forest Hwy 16" or "FFH-16" for its entire length. However, also as of the early 2020s, Bing Maps takes the award for properly labelling this roadway, calling it "Federal Forest Highway 16" throughout! Over at Mapquest, however, the wheels fall off the bus: While the Houghton Co segment of FFH-16 is somewhat properly labeled as "NF-16," when it gets to Iron Co, the roadname switches to "Old US-16!" and actual US-16 route markers are added to the route. One must wonder if the folks at Maquest even care anymore...