Mexican Federal Highway 37

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Federal Highway 37
Carretera federal 37
Route information
Maintained by Secretariat of Communications and Transportation
Length	530.3 km (329.5 mi)
North segment
Length	117 km[1] (73 mi)
North end	Fed. 57 in Villa de Zaragoza, San Luis Potosí[2]
South end	Fed. 51 in San Felipe
South segment
Length	413.3 km[3] (256.8 mi)
North end	Manuel Doblado
Major intersections	Fed. 90 east of La Piedad Fed. 200 in La Mira, Michoacán
South end	Playa Azul
Location
Country	Mexico
Highway system
Mexican Federal Highways List Autopistas
← Fed. 36 → Fed. 39

Federal Highway 37 (Spanish: Carretera Federal 37, Fed. 37) is a free part of the federal highways corridors (Spanish: los corredores carreteros federales) of Mexico.^[4] The highway runs from Villa de Zaragoza, San Luis Potosí, at its northern point to Playa Azul, Michoacán, located near the Pacific Ocean, at its southern point, near the port city of Lázaro Cárdenas, Michoacán.^[5] It crosses Fed. 14 at Uruapan, Michoacán, and Federal Highway 200 at La Mira, Michoacan.^[5]

Fed. 37 runs in two separate improved segments: the first segment runs from Villa de Zaragoza to San Felipe, Guanajuato. The second segment runs from Manuel Doblado, Guanajuato, to Playa Azul at Fed. 200. The two segments are connected via GTO 77 and Fed. 84-JAL 80.^[6] The highway is partly paralleled by Federal Highway 37D.