List of Michigan County-Designated Highways


Highway markers for A-2 in both Allegan and Van Buren counties
Highway names
Interstates: Interstate nn (I-nn)
US Routes: US Highway nn (US nn)
State: M-nn
County-Designated: A-nn through H-nn
County Road: County Road nn (CR nn, Co. Rd. nn)
System links
Michigan State Trunkline Highway System
Interstate • US • State

Below is a list of many County-Designated Highways in Michigan. Unlike State Highways (M-nn), there is a zone system to the numbering of these highways.

The basic plan provides for dividing the state into eight zones, lettered from A to H. These zones are determined by major state and federal trunklines which form dividers.
Within each zone, two-digit numbers will designate continuous routes, although each may cross several counties. In some cases, the route number may extend through one or more zones although the letter designation may change.
The numbering system will employ even numbers for East-West roads and odd numbers for North-South routes. Lower numbers, such as 01 and 02, etc., will start at the East or South boundaries and progressively increase to the 90 and 91 levels toward the West and North within each zone.
Thus, a traveler seeking to find A-28 could quicky determine that his destination is in the Southwestern Michigan area and that his route is an East-West road in the central part of that zone.[1]


Zone system

Lower Peninsula

The Lower Peninsula is divided into 6 zones, A-F:

Upper Peninsula

The Upper Peninsula is divided into the "G" and "H" zones. The dividing line between the two zones is US 41, between lakes Michigan and Superior with Zone G lying west of US 41 and Zone H lying east of it.[2]

Highways in A Zone

A-2

A-2
Location: Lake Michigan BeachHolland

A-2 is located in the southwestern part of the Lower Peninsula and runs along near the shoreline of Lake Michigan. It was originally part of US 31 before the I-196/US 31 freeway was built. It was the first county designated highway in the Lower Peninsula.[2] The route's southern terminus is at M-63 in the community of Lake Michigan Beach and its northern terminus is at US 31 south of Holland. The highway remains a two-lane undivided highway for most of its length, with a few divided portions. The highway is about 50 miles long. It has long been referred to by local residents as the Blue Star Memorial Highway in honor of "Blue Star" veterans who served the United States military during World War II.

A-37

A-37
Location: AlleganHudsonville

A-37 begins at M-222 in Allegan, running northerly to a terminus at I-196 in Hudsonville, by way of Monterey and Burnips. The route follows 30th Street through Allegan County, which becomes 24th Avenue in Ottawa County. The route then turns west on Byron Road south of Jamestown, and north on 32nd Avenue.

A-42

A-42
Location: DunningvilleBradley

A-42 runs for 16.4 miles (26.4 km) in Allegan County. The original segments of the highway were designated in 1982.[3] The western terminus of A-42 is at M-40 just north of Dunningville, having been extended westerly from A-37 in 1993. Its eastern terminus is at a junction of US 131 and M-179 near Bradley.

A-42 begins at an intersection with M-40 north of Dunningville. It follows 128th Avenue eastward to 13th Street. A-42 follows 13th Street northward for .75 miles (1.21 km) to a junction with 129th Avenue. From there, it turns eastward again along 129th Avenue to the US 131/M-179 interchange.

A-42 originally continued from US 131 another 6.146 miles (9.891 km) to M-43 west of Hastings.[4] This routing followed Metz, Bowen's Mill and Gun Lake roads. This portion of A-42 was transferred to the state as M-179 on October 31, 1999 as a part of then-governor John Engler's Rationalization plan. This portion was considered for a western extension of M-79, but the Michigan Department of Transportation ultimately decided to use a new designation instead.[3]

A-45

A-45
Location: KalamazooGrand Rapids

A-45 makes its run from Kalamazoo County to Kent County, and travels through the communities of Cooper Center, Plainwell, Martin, Shelbyville, Bradley, Wayland, Moline, Cutlerville, and Wyoming. The road was originally part of US-131 before its freeway was constructed.

The route's northern end is at M-11, and its southern end is at the BUS US 131 in Kalamazoo.

Highways in B Zone

B-15

B-15
Location: MontaguePentwater

B-15 exists within Muskegon and Oceana counties. It runs from the junction of US 31, BUS US 31 and B-86 north of Montague, Michigan, mostly paralleling the Lake Michigan shoreline. South of Pentwater, the route bends east and then north to follow the eastern and southern shores of Pentwater Lake to BUS US 31 three miles southeast of Pentwater.

B-23

B-23
Location: North MuskegonWhitehall

B-23 follows Russell Road from US 31 north of North Muskegon to B-86 northeast of the Montague/Whitehall area. The route runs through the village of Lakewood Club. The road also provides access to the Michigan's Adventure theme park.

B-31

B-31
Location: NunicaBrunswick

B-31 follows 112th Avenue and Maple Island Roads northerly from I-96 in Nunica to M-120 at Brunswick. The northern half of the route follows the Muskegon/Newaygo county line.

B-35

B-35
Location: CoopersvilleFremont

B-35 runs from I-96 in Coopersville to M-82 near Fremont. It includes the former routing of the first designation of M-213 between Muskegon and Brunswick. M-213 was turned back to local control in 1960 and became B-35 in the 1970s. South of Ravenna, the route is co-signed with B-72.

B-72

B-72
Location: MuskegonRockford

B-72 makes its course in Kent, Ottawa and Muskegon Counties. It runs westward from the US 131/M-57 interchange on 14 Mile Road, south on Algoma Road for one mile, west on 13 Mile Road through Sparta, and going through Ottawa County, then Muskegon County on Ellis Road. It then turns north onto Ravenna Road. through Ravenna, then northwestward and westward on Price Heights, Sherman, and Evanston roads.

B-86

B-86
Location: MontagueFremont

B-86 begins at the junction of US 31, BUS US 31 and B-15 north of Montague to the M-120/M-82 junction west of Fremont.

B-88

B-88
Location: White CloudStanwood

B-88 followed Baseline Road easterly from White Cloud, before turning north on Newcosta Avenue and east on Eight Mile Road to end at US 131 west of Stanwood. The B-88 designation was retired in 1998 when it was supplanted with a re-routing of M-20 east of White Cloud.

B-96

B-96
Location: BitelyBig Rapids Township

B-96 begins at M-37 near Bitely and runs easterly to the US 131/BUS US 131 junction north of Big Rapids.

Highways in C Zone

C-38

C-38
Location: MancelonaOtsego

C-38 is located in Ostego and Antrim Counties, following Mancelona and Manistee River Roads from old US 27 at Otsego Lake to the US 131/M-66/M-88 junction in Mancelona. East of the Otsego Lake area, the road continues as F-38.

C-42

C-42
Location: AlbaGaylord

C-42 begins at M-32 4 miles west of Gaylord and goes west 3½ miles, south for 3 miles, west for 2 miles, south for 1 mile on Primrose Road, and west for 4 miles on Alba Road, ending at US 131 in Alba.

C-48

C-48
Location: VanderbiltAtwood

C-48 begins at Vanderbilt following old US 27 north to Thumb Lake Road, following it to into Charlevoix County, where it also gains the County Road 626 designation. C-48 co-signs with US 131 in Boyne Falls to M-75, co-signing with it about 3/4 mile, turning west and going through East Jordan (including a concurrency with M-32 within the village), going into Antrim County and through Ellsworth, following Atwood Rd. to US 31 at Atwood.

C-56

C-56
Location: Boyne CityCharlevoix

C-56 follows County Road 630 from M-75, along the northern shore of Lake Charlevoix, through Horton Bay, to its junction with US 31.

C-58

C-58
Location: PetoskeyWolverine

C-58 runs easterly from Petoskey to an eastern terminus at exit 301 off I-75 just east of Wolverine in southwest Cheboygan County. The western terminus is uncertain. Signage on Michigan's county-designated highways is typically haphazard and there is no precise indication as to where the designation ends. However, the signage disappears west of the intersection with C-81 just east of Petoskey.
The highway is also known as Mitchell Road in Emmet County and as Wolverine Road in Cheboygan County, except in the village of Wolverine, where it is known as Main Street. Some maps also label it as Silver Lake Road west of Wolverine.

C-64

C-64
Location: PellstonCheboygan

C-64 follows VFW Road and Riggsville Road from its starting point with M-27, crossing into Emmet County onto Robinson Rd. to US 31.

C-65

C-65
Location: Central LakeCharlevoix

C-65 has its beginning with M-88 in Antrim County, following Ellsworth Road, and crossing into Charlevoix County onto County Road 593 and Center Rd. to M-66.

C-66

C-66
Location: Cross VillageCheboygan
Length: 27.9 mi (44.9 km)
Existed: October 5, 1970–present

C-66, runs for 27.9 miles (44.9 km) across the northern tip of the Lower Peninsula between Cross Village and Cheboygan. The west end is a few hundred yards from Lake Michigan while the east end is near the Cheboygan River just upstream from the mouth on Lake Huron. It is also known as Levering Road for most of its length, though it is also known as Cheboygan Road once it enters Beaugrand Township outside Cheboygan and as State Street inside Cheboygan.

C-71

C-71
Location: Horton BayBay Shore

C-71 begins at Horton Bay in Charlevoix County, following Horton Bay and Townline Rds. to US 31.

C-73

C-73
Location: Antrim CountyBoyne City

C-73 begins at M-32 in Antrim County, following Deer Lake and Korthase Rds. into Charlevoix County to Boyne City.

C-77

C-77
Location: Harbor SpringsCross Village

C-77, located in Emmet County, begins in Harbor Springs and follows State Road to M-119 and C-66 in Cross Village.

C-81

C-81
Location: Walloon LakePetoskey, Harbor SpringsMackinaw City

C-81 consists of two discontinuous segments. The southern segment extends from the junction of US 131 and M-75 in the community of Walloon Lake then extends to US 31 north of Petoskey. The northern segment follows Pleasant View Road going north in Emmet County, then turns east onto Gill Road, north onto Cecil Bay Road to Cecil Bay Corners, east onto Wilderness Park Drive, then east into Mackinaw City, ending one block north of the northern terminus of M-108.

Highways in D Zone

D-19

D-19
Location: PinckneyHowell

D-19 runs from I-96 at Howell to D-32 south of Pinckney. Like D-32, D-19 passes either through or near the hamlet of Hell, and is likewise also considered the real-life Highway to Hell.

D-32

D-32
Location: GregoryPinckney

D-32 runs from M-106 at Gregory to D-19 south of Pinckney. As it runs through the hamlet of Hell, D-32 is sometimes colloquially referred to as the "Highway to Hell".

Highways in F Zone

F-01

F-01
Location: Lewiston–Vienna

F-01 runs northerly from County Road 612 west of Lewiston northerly to F-44 north of Vienna. The route runs along the Otsego/Montmorency county line, which is also the Michigan Meridian, for its entire length.

F-05

F-05
Location: TowerCheboygan

F-05 is located in Cheboygan County and follows Black River Road northward, northward and westward on Abby Road, northward on Gaynor Road, west on Page Road, and north and northwest to Butler Road, and Butler Road to US 23 on the eastern city limit of Cheboygan.

F-07

F-07 consisted of two segments, both in Ogemaw County. The southern segment followed Cook Road from F-18 (Greenwood Road) south of West Branch to just south of the city limits, then west on Flowage Lake Road, north on 1st Street, west on Griffin Road and north on 4th Street into downtown West Branch, ending at M-55. The northern segment followed Fairview Road from M-55 on the east side of West Branch northerly via the community of Damon to the Ogemaw/Oscoda County line.[5] The highway is no longer designated.

F-09

F-09 ran along the former routing of M-76 from the Ogemaw/Arenac county line to BL I-75 southeast of West Branch. The highway is no longer designated.

F-17

F-17 followed Henderson Lake Road west of Prescott from the Ogemaw/Arenac county line northerly to F-26, northerly along the north-south portion of Greenwood Road (co-designated with F-26), northerly again along Shady Shores Road to F-28, westerly along Rose City Road (co-designated with F-28) to Lupton, northerly along Lupton Road through Lupton, easterly along Heath Road to South Branch, and then northwesterly along Mack Lake Trail to the Ogemaw/Oscoda county line.[6] The highway is no longer designated.

F-18

F-18
Location: St. HelenPrescott

F-18 follows Greenwood Road easterly from F-97 south of St. Helen through Skidway Lake and Prescott to the Iosco/Ogemaw county line. It then follows McLean Road southerly along this line to end at the juncture of the Iosco, Ogemaw and Arenac county lines. Official MDOT maps show the route ending at the Ogemaw/Roscommon county line, although the F-18 designation is signed along Greenwood Road in Ogemaw County; earlier maps from MDOT did not show the McLean road portion. The portion within the village of Prescott is part of the former M-70 designation.

F-19

F-19 followed the north-south portion of Sage Lake Road from south of Prescott northerly to the Sage Lake area, ending at a junction with F-26 (Town Hall Road at Sage Lake Road, which turns from north-south to east-west at this junction).[7] The highway is still partially signed.

F-20

F-20 followed Mills Road on the north side of Prescott,[8] then continued along Mills Road (which changes to Prescott Road within Iosco County) to M-65 through the community of Whittemore, before going east on Whittemore Road, north on Sand Lake Road and east on Townline Road to end at US 23 south of Tawas City. The Iosco county portion was removed around 1985.

F-21

F-21
Location: HillmanRogers City

F-21 begins at M-32 south of Hillman and ends at US 23 south of Rogers City. This route is also known as County Road 451 in Presque Isle County, and it overlaps with Business Spur M-32 within the village of Hillman. The southernmost half-mile of the route was formerly part of M-32 before that route was realigned to bypass Hillman.

A second F-21 designation followed East County Line Road along the Ogemaw/Iosco county line from F-24 northerly, crossing over into Iosco County via Flint and Long Lake Roads to end at F-28 (junction of Long Lake, South Branch and Mercury Roads) in the community of Long Lake.[9] This second F-21 is no longer designated.

F-24

F-24 followed State Road from east of West Branch easterly to the Iosco/Ogemaw county line, ending at F-21 (County Line Road).[10] The highway is no longer designated.

F-26

F-26 followed Sage Lake Road from F-7 north of West Branch to the Sage Lake area. At the junction of Town Hall Road (where Sage Lake Roads turns from east-west to north-south), F-26 continued easterly via Town Hall Road to the county line.[11] Before 1985, F-26 continued easterly through Hale via Esmond Road, then headed easterly and southeasterly via Vaughn, Indian Lake, Beck and Plank Roads through the Sand Lake area to end at M-55 west of Tawas City. The highway is no longer designated.

F-28

F-28
Location: St. HelenHale

F-28 runs from F-97 in St. Helen, along Rose City Road through Rose City and Lupton to the Iosco/Ogemaw County line. As with F-18, only the Roscommon County portion is shown on official MDOT maps, although F-28 is signed throughout all of Ogemaw County. The route previously continued easterly along Mercury Road (the Iosco County portion of Rose City Road), jogged northerly on South Branch Road, then easterly via Kokosing Road to end at M-65 north of Hale.

F-30

F-30
Location: GlennieGreenbush

F-30 runs easterly from M-65 in Glennie to end at US 23 in Greenbush via Mikado.

F-32

F-32
Location: GraylingCurran

F-32 begins at Business Loop I-75 in Grayling. The route runs along North Downriver Road north of Grayling, which becomes Miller Road (also County Route 608) in Oscoda County. West of Fairview, it is concurrently signed with M-33 and M-72 southerly to Mio. From there, it runs easterly along McKinley, Old State, Au Sable and Aspen Alley Roads through the community of McKinley, ending at M-65/M-72 south of Curran.

F-38

F-38
Location: Otsego LakeLewiston

F-38 is a continuation of the C-38 designation between Mancelona and Otsego Lake. It continues along Old State Road to end at F-01 north of Lewiston.

F-41

F-41
Location: OscodaHubbard Lake
Length: 31.803 mi[12] (51.182 km)
Existed: 1970[1]–present

F-41 runs from Oscoda to near Hubbard Lake via Lincoln. This routing was originally a portion of US 23 until the 1930s, and was designated M-171 until 1960.

F-42

F-42
Location: GaylordJohannesburg

F-42 runs from M-32 west of Johannesburg to BL I-75 south of Gaylord.

F-44

F-44
Location: Gaylord–Vienna

F-44 runs from F-01 to M-32 east of Gaylord.

F-97

F-97
Location: GladwinJohannesburg

F-97 is located in Gladwin, Roscommon, Crawford, and Otsego counties. It begins at a junction with M-18 about seven miles north of Gladwin. It runs mostly north-south, crossing I-75 in Roscommon County. Access is through Exit 227 with M-55 about a mile to the west. The route then cuts to the east for about four miles before continuing north through St. Helen. In Crawford County, just north of the Roscommon County boundary, the route runs concurrently with M-18 for about four miles in South Branch Township. Where M-18 has its northern terminus at the junction with M-72, F-97 continues north through Lovells along a winding path that is roughly parallel with the North Branch Au Sable River. The northern terminus is at M-32 south of Johannesburg, although MDOT maps show it ending at F-38.

Highways in G Zone

The "G" Zone is west of US 41 between Lake Michigan and Lake Superior.

G-08

G-08
Location: Wisconsin state line–Wallace

G-08 runs from US 41 at Wallace to the Menominee River and CTH-JJ at the Wisconsin state line. It is also known as County Road 342.

G-12

G-12
Location: Wisconsin state line–Cedar River

G-12 runs from M-35 south of Cedar River to the Menominee River at the Michigan/Wisconsin state line. The route runs through the community of Stephenson.

G-18

G-18
Location: Wisconsin state line–Carney

G-18 runs from US 41 at Carney to the Menominee River and CTH-Z at the Wisconsin state line.

G-30

G-30
Location: Randville–Hyde

G-30 ran from Randville to Hyde via Felch. Before 1960, this route was part of M-69, and it was reverted to M-69 in 1993.

G-38

G-38
Location: RalphEscanaba

G-38 ran from G-67 in the community of Ralph easterly through Arnold, Mashek, Watson and Cornell to end at US 2 north of Escanaba. The highway designation was removed from the MDOT map in 1995.[13]

G-67

G-67
Location: FelchRalph

G-67 ran from M-69 in Felch northerly to the community of Ralph, ending at the junction of G-38. The route is signed as County Road 581.

G-69

G-69
Location: WaucedahFoster City

G-69 runs from US 2 at Waucedah to M-69 at Foster City.

Highways in H Zone

The "H" Zone is east of US 41.

H-01

H-01
Location: TrenaryEben Junction, ChathamAu Train

H-01 consists of two segments. The south segment runs from M-67 in Trenary to M-94 in Eben Junction, and the north segment runs from M-94 in Chatham to M-28 west of Au Train.

H-03

H-03
Location: Forest LakeAu Train

H-03 runs from M-94 in Forest Lake to M-28 in Au Train.

H-05

H-05
Location: Delta CountyForest Lake

H-05 runs from M-94 east of Forest Lake to the Alger/Delta County Line. It formerly continued along County Route 509 to end at US 2 east of Rapid River.

H-09

H-09
Location: WetmoreMunising

H-09 is an unsigned county route. It runs from H-13 south of Wetmore to M-94 west of Munising.

H-11

H-11
Location: Pictured Rocks National Lakeshore

H-11 is a spur-route running northerly from H-58 to Miners Castle in the Pictured Rocks National Lakeshore.

H-13

H-13
Location: Nahma JunctionWetmore

H-13 is concurrently-designated as Federal Forest Highway 13 for nearly its entire length.[3] The southern terminus is at US 2 at Nahma Junction, and the northern terminus is at H-58 in Wetmore. It formerly extended to Miners Castle in the Pictured Rocks National Lakeshore. In 2004 or 2005, H-13 was truncated on the north end to its first junction with H-58, and a new H-11 was created in place of H-13 on the northern end.

H-15

H-15
Location: ShingletonVan Meer

H-15 runs from M-28/M-94 junction at Shingleton to H-58.

"H-16"

Federal Forest Highway 16
Location: Stambaugh TownshipLaird Township
Length: 50.504 mi[12] (81.278 km)

Federal Forest Highway 16 (FFH 16) is a forest highway in the western Upper Peninsula of Michigan. This road is erroneously marked as H-16 on the MDOT map. It runs through the Ottawa National Forest and is designated by the National Forest Service. Although the MDOT maps would suggest that it is a part of the County-Designated Highway System, it is not. The three counties in question do not participate in the system, and the roadway falls in the middle of the G zone for numbering purposes.

H-33

H-33
Location: Gould CityMcMillan

H-33 was originally parts of two Michigan state highways from the 1930s. From US 2 to present day H-44, it was originally M-135, and M-98 from H-44 near Helmer to M-28.

H-37

H-37
Location: NewberryDeer Park

H-37 is a mostly north-south route from M-123 north of Newberry to H-58 at Deer Park.

H-40

H-40
Location: EngadineRudyard

H-40 was originally part of M-48 from Rudyard to Garnet, where M-48 turned north. The rest of H-40 to about 4 miles west of Engadine was originally part of US 2. When the county highway system was instigated in Michigan, H-40 was originally known as B-1. The route's western terminus is at M-117 in Engadine, and its eastern terminus at M-48 in Rudyard.

H-42

H-42
Location: GermfaskCurtis

H-42 runs from H-33 at Curtis to M-77 south of Germfask.

H-44

H-44
Location: KivaLimestone, GermfaskHelmer

Two H-44 designations exist. The eastern section from Helmer at H-33 to Germfask was originally part of M-98 in the 1930s. The western section in Alger County begins at an intersection with US 41 at Kiva, continues through an intersection with H-01 at Traunik, and then ends at an intersection with M-67 and Storm Road just south of Limestone.

H-52

H-52
Location: M-28H-58

H-52 runs from M-28 to H-58 at Melstrand. The route has not appeared on MDOT maps since 2006.

H-57

H-57
Location: US 2M-123

H-57 is a cutoff route running from US 2 near St. Ignace to M-123 near Moran.

H-58

H-58
Location: MunisingGrand Marais

H-58 runs east-west through Pictured Rocks National Lakeshore. Along H-58, there are the towns of Melstrand, Van Meer, and Myren. The length is 69.1 miles (111.2 km). The western terminus is at M-28 in downtown Munising, Alger County, Michigan. The eastern terminus is at H-37 in Muskallonge Lake State Park, Deer Park, Luce County, Michigan. H-58 provides the main access to the park and as such is undergoing a revitalization effort to complete paving of the road surface by 2010.

H-60

H-60
Location: H-58M-77

H-60 is an unsigned route from H-58 east of Munising to M-77 south of Grand Marais.

H-63

H-63
Location: St. IgnaceSault Ste. Marie

H-63 runs generally parallel to and within a few miles of I-75 from the northern limits of St. Ignace (near Castle Rock) to Sault Ste. Marie. This segment of highway is also a relic of former US 2 between those cities. As I-75 was constructed between St. Ignace and Sault Ste. Marie, the US 2 designation was transferred to the freeway with the former route being turned back to local control. In the early 1970s, the former route of US 2 along Mackinac Trail was designated as H-63. H-63 is known as Mackinac Trail for its entire length.

External links

A Zone

B Zone

C Zone

D Zone

F Zone

H Zone

References

  1. ^ a b "County Primary Road Marking System Okayed". Holland Evening Sentinel: p. 6. October 5, 1970. 
  2. ^ a b c Bessert, Christopher J. (January 1, 2008). "County-Designated (Intercounty) Highways". Michigan Highways. http://www.michiganhighways.org/listings/county_highways.html. Retrieved March 7, 2008. 
  3. ^ a b c Bessert, Christopher J. (March 7, 2007). "County Designated A-2 through C-81". Michigan Highways. http://www.michiganhighways.org/listings/MichHwysA2-C81.html#A-42. Retrieved October 8, 2007. 
  4. ^ Bessert, Christopher J. (January 2, 2007). "Jurisdictional Transfers 1998–2002". Michigan Highways. http://www.michiganhighways.org/indepth/juristrans_1998-2002.html. Retrieved October 8, 2007. 
  5. ^ Ogemaw County Road Commission (February 1978). Ogemaw County (Map). Section A7-X7. 
  6. ^ Ogemaw County Road Commission (February 1978). Ogemaw County (Map). Section J18-X18, J19-G19, F17-A21. 
  7. ^ Ogemaw County Road Commission (February 1978). Ogemaw County (Map). Section X22-K21. 
  8. ^ Ogemaw County Road Commission (February 1978). Ogemaw County (Map). Section T16-T24. 
  9. ^ Ogemaw County Road Commission (February 1978). Ogemaw County (Map). Section G24-P24. 
  10. ^ Ogemaw County Road Commission (February 1978). Ogemaw County (Map). Section O9-N24. 
  11. ^ Ogemaw County Road Commission (February 1978). Ogemaw County (Map). Section J8-J24. 
  12. ^ a b "MDOT Physical Reference Finder Application". Michigan Department of Transportation. 2009. http://www.mcgi.state.mi.us/prfinder/. Retrieved August 29, 2010. 
  13. ^ Bessert, Christopher J. (January 31, 2009). "D-19 through H-15". Michigan Highways. http://michiganhighways.org/listings/MichHwysD19-H15.html#G-38. Retrieved September 8, 2009. 
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