New Mexico State Road 485

State Road 485 (NM 485) is a 3.9-mile-long (6.3 km) state highway in the US state of New Mexico. NM 485's southern terminus is near the small town of Jemez Pueblo, at NM 4. The route passes through land belonging to the pueblo near the Nacimiento Mountains and follows the canyon of the Rio Guadalupe until the pavement ends. The highway intersects and adjoins the Jemez Mountain Trail National Scenic Byway.[2]

State Road 485
NM 485 highlighted in red
Route information
Maintained by NMDOT
Length3.900 mi[1] (6.276 km)
Major junctions
South end NM 4 near Jemez Pueblo
North endForest Road 376 near Cañones
Location
CountiesSandoval
Highway system
  • State Roads in New Mexico
← NM 484US 491 →
Gilman tunnels on FR376 can be reached vis NM 485

Gilman Tunnels

The road through the Rio Guadalupe box canyon bears the designation Forest Road 376 in Santa Fe National Forest near the unincorporated town of Cañones (or Gilman). The continuation as Forest Road 376 eventually terminates at New Mexico State Road 126 east of San Pedro Parks Wilderness. The route incorporates the Gilman Tunnels (1 mi (1.6 km) beyond the transition to Forest Road 376) which was part of the former Santa Fe Northwestern Railway (SFNW) through the canyon which was used to haul lumber from the Jemez Mountains. The railway opened in 1924 but never recovered financially from the Wall Street Crash of 1929,[3] and ceased operations in May 1941 following flood damage from the Rio Guadalupe.[4]

The Gilman Tunnels were used in the filming of the 2007 motion picture 3:10 to Yuma.[5]

The tunnels pass through a beautiful Precambrian monzogranite with an radiometric age of 1450 million years.[6]

Major intersections

The entire route is in Sandoval County.

Locationmi[1]kmDestinationsNotes
​0.0000.000 NM 4Southern terminus
​3.9006.276Forest Road 376Northern terminus; road continues into Santa Fe National Forest
1.000 mi = 1.609 km; 1.000 km = 0.621 mi
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See also
  •  U.S. Roads portal

References
  1. "Posted Route–Legal Description" (PDF). New Mexico Department of Transportation. March 16, 2010. p. 91. Retrieved December 19, 2013.
  2. State of New Mexico, Tourism Department. "Jemez Mountain Trail National Scenic Byway". Archived from the original on March 26, 2009. Retrieved April 9, 2009.
  3. "Exploring Gilman Canyon". The Sandoval Signpost. Retrieved August 11, 2013.
  4. Myrick, David F. (1970). New Mexico's Railroads. Colorado Railroad Museum. pp. 175&176.
  5. Devall, Kimberly A. (November 24, 2006). "Gilman Tunnels To Close Temporarily For Filming" (Press release). Santa Fe National Forest, United States Forest Service. Archived from the original on June 11, 2014. Retrieved December 14, 2012. (subscription required)
  6. Grambling, Tyler A.; Holland, Mark; Karlstrom, Karl E.; Gehrels, George E.; Pecha, Mark (2015). "Revised location for the Yavapai-Mazatzal crustal province boundary in New Mexico: Hf isotope data from Proterozoic rocks of the Nacimiento Mountains" (PDF). New Mexico Geological Society Field Conference Series. 66: 175–184. Retrieved 21 April 2020.

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Geographic data related to New Mexico State Road 485 at OpenStreetMap

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