Highway canyon on the Enchanted Circle
Cimarron Canyon State Park occupies a narrow, forested stretch of US 64 between Eagle Nest and Ute Park / Cimarron in Colfax County. The park address is 28869 Highway 64, Eagle Nest. Elevation at the developed corridor is roughly 7,500–8,000 feet (the park lists about 7,876 feet). The highway is the spine of the park: day-use pullouts, campgrounds, and river access sit a short distance off the pavement, with no long dirt approach. Passenger cars and ordinary RVs use the main camp loops without high-clearance needs. Winter snow and ice on US 64 are the seasonal constraints that matter.
The park sits inside the Colin Neblett Wildlife Management Area, a roughly 33,000-acre New Mexico Department of Game and Fish property purchased in 1950–1951. Game and Fish manages hunting and much of the backcountry; State Parks runs the highway-frontage camping, day use, and visitor services. That dual ownership shows up at trailheads: vehicles parked for Colin Neblett trails need a New Mexico State Park permit, a current hunting/fishing/trapping license, or a Game and Fish GAIN permit. Free angler parking lots at selected river accesses follow the same rule set.
Camps, river access, and the Palisades
State Parks counts four campgrounds and on the order of ninety-plus developed sites across the canyon, plus a small set of remote tent pads. Tolby Campground, near the park office on the west (Eagle Nest) side, has modern restrooms, hydrants, and sites sized for roughly 24–35-foot units, with free angler access near the entrance. Ponderosa offers a modern restroom, hydrants, sites around a parking lot, and a few tent pads. Maverick, farther east by the Gravel Pit Lakes fishing ponds, is the largest loop—dozens of sites, two modern restrooms, hydrants. Blackjack is summer-only tent camping (Memorial Day weekend through Labor Day) with tables, grills, vault toilets, and river frontage but no drinking water. From mid-September through the second weekend of May, restrooms and potable water are shut down in the developed loops; winter camping is still possible but primitive.
Day-use stops matter as much as overnighting. Palisades Picnic Area sits across from the wall of crenelated igneous cliffs—about 300 feet high—where rock climbing is prohibited. Perryville and Horseshoe Mine day-use areas give fishing access to the Cimarron and to beaver ponds. The river itself is special trout water for a multi-mile reach; regulations change with the annual Game and Fish proclamation, so check wildlife.dgf.nm.gov before wet-wading. Fly-fishing for brown and stocked rainbow trout is the classic use. The canyon bird list exceeds 100 species, with American dipper on the water and mixed montane forest birds on the slopes.
Trails into Colin Neblett
Clear Creek Trail leaves near milepost 292 on the south side of the canyon and follows the creek about 1.6 miles past waterfalls and good wildlife habitat. Tolby Creek / Tolby Meadow routes climb from the Tolby trailhead with upper and lower options. Maverick Trail runs roughly six miles in a scenic wildlife corridor; Maverick Canyon trails on old logging roads have many unmarked junctions and are not maintained by State Parks. Horseback use is allowed on Tolby and Maverick; Clear Creek is closed to horses. Game and Fish posts summer closures on some backcountry segments—confirm before a long loop.
Reservations for Tolby, Ponderosa, and Maverick sites run through ReserveAmerica / the New Mexico State Parks system from May into mid-September. Off-season patterns and first-come availability change; use the park page and reservation portal for current openings. Day-use hours run long—check the park page and current alerts for the posted window. A per-vehicle day-use fee applies; annual and multi-day state park passes are available through the official pass store.
How to chain it into a northern New Mexico loop
Westbound on US 64, Eagle Nest Lake State Park is minutes away for open-water fishing and a second campground option when Cimarron Canyon loops fill. Eastbound, the road drops toward Cimarron and the historic Maxwell Land Grant country. The wider Enchanted Circle (US 64, NM 38, NM 522 through Angel Fire, Red River, Questa, and Taos) puts Cimarron Canyon on a paved mountain-day circuit. Summer monsoons can raise the river and close backcountry temporarily; early fall brings cooler nights and hunting pressure on Colin Neblett—expect more trucks and orange vests. In winter the canyon is a cold, high-elevation stop with limited services.
Do not treat the WMA backcountry as free camping outside designated areas, and do not scramble on the Palisades cliffs. A stop here gives pavement access to a trout river under basalt walls, short canyon walks, and optional longer climbs into one of northeastern New Mexico’s largest public wildlife blocks—without leaving the Enchanted Circle highway.
Plan ahead. Leave no trace. Verify current access before traveling.