Eagle Wind Trail, Rabbit Mountain Trailhead, Boulder - Denver - Golden - Fort Collins - Lyons, Colorado
Eagle Wind Trail - 3.95 miles
Rabbit Mountain Trailhead
|Round-Trip Length:||3.95 miles|
|Start-End Elevation:||5,530' - 5,530' (5,886' max elevation)|
|Elevation Change:||+336' net elevation gain (+472' total roundtrip elevation gain)|
Eagle Wind Trail - 3.95 Miles Round-Trip
140 million years ago the Rabbit Mountain area marked the western shore of an inland sea that stretched from the Gulf of Mexico to the Hudson Bay. It was tropical lowland covered by rivers, swamps and lagoons. This sea retreated approximately 65M years ago when tectonic forces pulled the earth's crust, resulting in a western uplift that formed the Rockies.
The uplift's ripples caused rocks to compress and bulge at its base, creating anticlines - or convex folds on the earth's surface. As the bulging anticline's softer sediments eroded, only hard ridges - known as Hogbacks - remained from the previously rounded hilltops.
Rabbit Mountain's position three miles east of similar anticline formations along the Front Range is unique. The complex movements of two faults in the area pushed these eroding anticlines east, and with a rare orientation: their steepest sides face east, and gentler slopes to the west.
This unusual location and orientation make it a natural landmark visible from three counties. Today Rabbit Mountain stands along this divisive uplift between the Saint Vrain drainage basin (south) and Big Thompson drainage basin (north).
Here the Great Plains meet the Rocky Mountain upslope, a rich ecological juxtaposition that brings plant and wildlife communities together from each. White tail deer, mule deer coyote, elk, fox, rabbit, raptors and rattlesnakes all call this area home.
The Eagle Wind Trail - a lollipop loop - leads up and around the west slope of Rabbit Mountain with terrific views across the Eastern Plains, Front Range and Continental Divide. Hikers, runners, cyclists and families will enjoy mild grades and good wildlife viewing throughout:
The trail heads northeast from the parking area on a winding course to the Little Thompson Overlook Trail split (.5 miles : 5,712'). Follow signs and (right) across the saddle spanning a hogback (north) and the plateau around which the Eagle Wind Trail loops (southeast).
Continue over the service road (which provides access to the Indian Mesa Trail) to the beginning of the Eagle Wind Trail Loop (1.0 mile : 5,802'). The following description travels clockwise on the loop:
The trail levels atop a sparsely treed mesa with rangy panoramas of the Front Range, Continental Divide and Eastern Plains. Mountain mahogany, ponderosa and pinyon pine dot the expansive tract before you, brightened by an array of sage, switchgrass, and array of flowers.
You'll merge briefly with a service road (1.45 miles : 5,825') through a wide clearing with views of Mt Meeker (13,911'), Longs Peak (14,259') and the Twin Sisters (11,428' - 11,413'). Veer off the service road (1.55 miles) and continue across the mesa.
In about two miles the trail turns sharply back northwest to begin the second, lower portion of the loop. This section undulates gently through heavier brush back to the beginning of the loop (2.95 miles : 5,802'). Just before completing the loop is an outcrop and interpretive sign that identifies peaks from the Eldorado Canyon Area (south of Boulder) to Rocky Mountain National Park (north). Retrace your steps back to the parking area (3.95 miles : 5,530).
- N40 14.798 W105 13.420 — Rabbit Mountain Trailhead
- N40 14.977 W105 13.085 — .5 miles : Little Thompson Overlook Trail junction
- N40 14.689 W105 12.795 — 1 miles : Eagle Wind Trail - begin loop
- N40 14.434 W105 12.467 — 1.5 miles : Clearing with westerly views
- N40 14.210 W105 12.416 — 2.25 miles : Travel on west (lower) half of loop
- N40 14.689 W105 12.795 — 2.95 miles : Complete Loop
- N40 14.798 W105 13.420 — 3.95 miles: Rabbit Mountain Trailhead
- Fault movements in the Rabbit Mountain area have cracked rock under-layers, freeing water trapped beneath the surface to rise. There are seven natural springs in the Rabbit Mountain area.
- The Rabbit Mountain area has been occupied for over 5000 years. Indigenous Indians were displaced in the 1800s by European settlers seeking gold and arable land. The granddaughter of forest ranger Jack Moomaw sold the land to Boulder County in 1984, establishing it as protected open space.
- Rattlesnakes are common in the Rabbit Mountain area. While encounters are rare, be mindful of their presence and never place your hands or feet where you can't see them.
Directions to Trailhead
The Rabbit Mountain Trailhead is located 2.8 miles north of Highway 66 on N. 53rd Street.
Head north on Highway 36 out of town towards Lyons. Highway 36 will dead end into Highway 66. Turn right on Highway 66 and continue for one mile. Turn left into N. 53rd Street and follow it 2.8 miles to the Rabbit Mountain parking lot on the right.
Boulder County Parks & Open Space
5201 St. Vrain Road
Longmont, Colorado 80503