Marker design and table background color indicate route status and era that the route was turned back or renumbered, as indicated at right:
Currently marked routes
Routes eliminated or renumbered 1960-present
Routes eliminated or renumbered 1950-1960
Routes eliminated or renumbered 1930-1950
Routes for which there is conflicting information about their present or past existence.
71 Routes for which no record has been found so far of this number being assigned. (Post-1927 only).


No history of a state route with this number found.


Photo taken at Santa Clara in March 2008

West terminus: U.S. 180 at Santa Clara (E of Silver City)
East terminus
: NM-187 at Caballo

Length: 66.067 mi.

County: Grant, Sierra

History: Originally part of U.S. 180 (I), then renumbered NM-180 and NM-90. In 1988, the segment of NM-90 east of Silver City was renumbered to NM-152.

Improvements: Two-lane paved highway

Comments: Crosses Emory Pass in the Black Mountains, the physical barrier that prevented U.S. 180 (I) from being a continuous route during its existence.

NM-153 West terminus: NM-211 at Gila
East terminus
: Mogollon Creek

Length 3.752 miles

County: Grant

History: Established probably in 1988.

Improvements: Two-lane paved



West terminus: NM-185 near Hatch
East terminus
: NM-140 S of Rincon

Length: 4.189 miles

County: Doņa Ana

History: The level of detail for this short route makes the exact routing --- and thus the history --- a little uncertain. I believe this is the western leg of former NM-140, which for a time went from Hatch east to Rincon and then south to U.S. 85. The south leg is still NM-140.

Improvements: Two lane, paved



No history of a state route with this number found.
    NM-156 West terminus: U.S. 84 E of Santa Rosa
East terminus
: NM-252 S of Ragland

Length: 60.603 mi.

County: Guadalupe, Quay

History: Established mid-1930s. Essentially unchanged in routing and designation since that time.

Improvements: 2-lane, paved road except for a gravel section near Luciano Mesa in the middle part of the route.


NM-157 West terminus: NM-185 at Ft. Selden
East terminus
I-25 (Exit 19)

Length: 1.74 mi.

County: Doņa Ana

History: Likely established 1988.

Improvements: Two-lane, paved



West terminus: NM-185 N of Las Cruces
East terminus
: Doņa Ana Road in Hill

Length: 0.9 mi.

County: Doņa Ana

History: Likely established 1988.

Improvements: Two-lane, paved

Comments: Lujan Hill Road

NM-159 West terminus: U.S. 180
East terminus
: Silver Creek

Length: 30.550 mi.

County: Catron

History: Originally part of NM-78 since mid-1930s. This route was cut back, probably in 1988.

Improvements: Paved, two lane road west of Mogollon, gravel east of there.

NM-160 West terminus: NM-3 S of Buena Vista
East terminus
: U.S. 85 at Watrous

Length: 20 mi.

County: Mora

History: Established in the 1950s. Renumbered NM-161 in 1970 when U.S. 160 was established in New Mexico.


Original NM-161 South terminus: U.S. 380 at Bingham
North terminus
: NM-15 S of Claunch

Length: ~20 mi.

County: Socorro

History: Established mid-1930s. The alignment was shifted more westerly thereafter, and by the late 1940s it was redesignated as an extension of NM-41. This was removed from the state highway system by the 1960s and is now county road.


Taken at the south junction with I-25 (exit 364). Note tha the directional sign is much older (cracked reflective background) than the route marker.

West terminus: NM-518 S of Buena Vista
East (north) terminus
: Ft. Union Nat'l Monument
Previously ---
I-25 at Watrous

Length: 31.902 mi.

County: Mora

History: The west leg of this U-shaped route was renumbered from NM-160 in 1970. In 1988, it was combined with NM-477 and whatever the frontage road along I-25 was called then to form a continuous route.

Improvements: Two-lane paved road

Comments: This was one of the more bizarre outcomes of the 1988 renumbering. Yes, it's a continuous route, but it almost turns back on itself. Worse, it creates confusion from two closely spaced exits along I-25, both numbered for NM-161 and identically signed (NM-97/NM-161/Watrous/Valmora). There was really no reason under the criteria used for that renumbering to change NM-477, and it would have been more logical to extend NM-161 along what is now NM-97.


South terminus: U.S. 84 S of Tierra Amarilla
North terminus
: U.S. 64-84 N of Tierra Amarilla
Previously --- U.S. 84 at Brazos

Length: 2.6 mi.

County: Rio Arriba

History: Established 1950s from U.S. 84 in Tierra Amarilla, north to Brazos. In the late 1950s, U.S. 84 was relocated west of Tierra Amarilla, but I don't know what its former route through town was renumbered as at that time. The segment of NM-162 from Tierra Amarilla north was renumbered NM-573 in 1988, and NM-162 assumed the former business loop. (It's possible that 162 extended south along old U.S. 84 to intersect 84 south of town since the bypass was opened.)

Improvements: Two-lane, paved


NM-163 West terminus: NFS 30 at Railroad Canyon
East terminus
: NM-52

Length: 40.1 mi.

County: Catron

History: This was originally designated in the 1930s as NM-145 before being combined into NM-78. the eastern leg of which was broken up in 1988. (A more westerly segment of old 78 is NM-159).

Improvements: Gravel



South terminus: U.S. 66 at Thoreau
North terminus
: Crownpoint

Length: 26 mi.

County: McKinley

History: This route, like NM-56, has a confused history with 1930s era route NM-35. This is shown on a 1936 map on the same route that before and after that time is shown as NM-35. It's possible, though, that NM-35, as is shown on a 1926 map, actually went from Gallup to Crownpoint until being routed onto this road in the mid-1930s. At any rate, later became NM-56 and NM-57, and it is now the southern end of NM-371.



Taken May 2005 at foot of Sandia Peak (junction with 536).


West terminus: I-25 (exit 242) at Bernalillo
East terminus
: NM-536 near Sandia Peak

Length: 16.754 mi.

County: Sandoval

History: This route was established in 1985. It was formerly the eastern part of NM-44, and I remember that number being removed from this route in the 1970s.

Improvements: Paved two lane and gravel

Comments: The sign for NM-536 is just to the left of the sign shown at left, and is shown under the NM-536 listing. It isn't nearly as faded as this one, which suggests this sign is probably an original. .

NM-166 West terminus: Very Large Array (VLA) Visitor Center
East terminus
: NM-52 near junction U.S. 60

Length: 1.9 mi.

County: Socorro

History: Probably established 1988 or thereabouts. Just a connecting road to the VLA Visitor Center. It may have been a part of old U.S. 60 before it was relocated.

Improvements: Paved two lane

Comments: If you're not aware, the VLA is a series of huge, huge radiowave receivers pointed into space looking for messages from out there. The receivers are aligned so they act as one unit. This road is actually a piece of original U.S. 60, realigned long ago.


No history of state routes with these numbers found.
NM-169 South terminus: U.S. 60 at Magdalena
North terminus
: Alamo

Length: 35.700 mi.

County: Socorro

History: Created in the 1940s as an extension of NM-52, though the road was much shorter. It was extended in the 1960s and in 1988 was renumbered.

Comments: Serves the Alamo Band Navajo Reservation. This band is the southeasternmost group of Navajo. Looking at this route suggests why today's NM-47 from U.S. 60 to near Belen (formerly NM-6) was originally designated NM-52. There may have been a plan in the 1930s to eventually extend this route east from where it ends now to Belen and connect to that road.

NM-170 South terminus: U.S. 64 at Farmington
North terminus
Colorado State Line (CO-140) N of La Plata

Length: 19.599 mi.

County: San Juan

History: Established mid-1930s, originally part of that hard-to-characterize route NM-35. It soon became an extension of NM-17 and kept that designation until U.S. 64 was extended west to Farmington over NM-17 around 1974.

Improvements: Two-lane, paved


Original NM-171 West terminus: NM-65
East terminus: NM-57 at Buyeros

Length 10 mi.

County: Harding

History: Established 1940s. By the mid-1950s, NM-57 west of Buyeros was removed from state system, and NM-171 and the remaining piece of NM-57 became part of NM-102.


NM-171 West terminus: NM-181 near Truth or Consequences
East terminus
: NM-195 at city of Elephant Butte

Length 1.6 mi.

County: Sierra

History: The original routing of NM-52 east of U.S. 85, beginning probably in the 1920s. By the 1950s, this road had been bypassed by a new alignment of NM-52 further north, and this road was removed from the state highway system. In the 1988 renumbering, it was reestablished as a state highway, probably because it provides access between I-25 and the city of Elephant Butte and the reservoir.

Improvements: Two-lane, paved


NM-172 Suth terminus: NM-249 N of Maljamar
North terminus
: U.S. 380 near Caprock

Length 28.189 mi.

County: Chaves

History: Established early 1950s.

Improvements: Two-lane, paved


NM-173 West terminus: U.S. 550 at Aztec
East terminus
: NM-511 at Archuleta
Previously --- NM-17 at Blanco (1940s-60s)

Length 18.057 mi.

County: San Juan

History: Established early 1940s, originally ran down what is now NM-575 to Blanco. This route was the original alignment of NM-44 in the 1930s until that route was realigned along old NM-55 south of Aztec. In the 1960s, it was routed east to NM-511 at Navajo Dam.

Improvements: Two-lane, paved

Comments: One map from the mid-1970s shows both the new eastern extension to Archuleta and the original southeast segment as NM-173. That indicates this may have been a T-route for a few years.

Old NM-174 South terminus: NM-53 near Paxton
North terminus
: U.S. 66 at Grants

Length 30 mi.

County: Cibola

History: Established 1930s, within a few years became the present alignment for NM-53, which originally ran further west to U.S. 66.


NM-174 West terminus: U.S. 180 at Glenwood
East terminus: The Catwalk

Length: 5.000 mi.

County: Catron

History: Appears to have been established around 1988.

Improvements: Two-lane, paved


NM-175 West terminus: Refinery
East terminus
: NM-8 near Oil Center

Length: 1.6 mi.

County: Lea

History: Established before 1988, because of its number. Serves as an access road from NM-8 for a refinery and associated natural gas processing facilities out there in Little Texas.

Improvements: Two-lane, paved


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  Last updated May 21, 2009