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Colorado United
Engineer Mountain Trail

Engineer Mountain Trail

San Juan Mountains • Silverton, Colorado

hardout and back
6
Miles
2,300
Elevation Gain (ft)
5
Hours
12,968
High Point (ft)

Overview

Engineer Mountain is the layered pyramid that stands over US 550 between Durango and Silverton, and the climb from Coal Bank Pass is the shortest way onto a 12,968-foot summit in the San Juans: 3 miles each way with about 2,300 feet of gain, through the wildflower meadows below the peak and up an east ridge that finishes with a short Class 3 scramble through a rock band. The summit view covers the whole southern San Juans.

Trail Highlights

12,968-foot summit
Layered geology near top
July wildflower meadows
Coal Bank Pass trailhead

The Route

From the Coal Bank Pass trailhead at 10,640 feet, the Pass Creek trail climbs through spruce and fir for 2.2 miles, gaining about 1,000 feet, to the open meadows and the junction with the Engineer Mountain trail at treeline. The meadows are the wildflower show in July, with the peak's striped face above.

The summit route leaves the trail and climbs the east ridge on a use path, steep on grass and then talus, to a rock band near 12,600 feet where the route steps up through a short Class 3 section with real exposure to the north; the moves are solid and short. Above the band the ridge narrows and finishes on the summit at 12,968 feet. Return the same way; downclimb the rock band facing in.

Getting to the Trailhead

Coal Bank Pass is on US 550, 34 miles north of Durango and 14 miles south of Silverton. At the pass summit, turn west onto a short dirt road; the Pass Creek trailhead is 50 yards in, and there is a toilet at the pass. The lot fills by 8 AM on July and August weekends. No fee or permit. The Engineer Mountain trail can also be reached from the Engineer Mountain trailhead lower on the highway, a longer approach.

Best Time to Hike

The meadows melt out in late June and the summit ridge is dry from July through September, with the flowers peaking in the second half of July. The San Juan monsoon puts storms on the peak by early afternoon in July and August, and the ridge has no shelter; be off the summit by noon. The aspen along US 550 turn in the last week of September. In winter Coal Bank Pass is a backcountry ski trailhead and the peak is avalanche terrain.

☀️summer
🍂fall

Good to Know

Dogs are allowed and should be leashed above the meadows; the rock band is a bad place for one, and many owners turn around there. Not a kid hike, though the meadows at 2 miles are a fine family walk. Carry two liters; there is no water on the ridge. A helmet is reasonable for the rock band. The trailhead is above 10,600 feet. Silverton and Durango have the services. The Durango hikes page has Hermosa Creek and the lower trails, and the San Juan region page covers the rest.

Sources

Figures and access details on this page were checked against these pages on 2026-09-04. Conditions change; confirm with the managing agency before you go.

Who to call

Conditions, closures, permits, and anything left behind on Engineer Mountain Trail.

Managed by
Columbine Ranger District, San Juan National Forest
(970) 884-2512 (Bayfield, Fri only, 10 to 4:30) · website
On other weekdays call the San Juan National Forest office in Durango, (970) 247-4874, Mon, Tue, Thu and Fri 9 to 3.
Lost and found, non-emergency
La Plata County Sheriff's Office
(970) 385-2900 · website
Items found inside Durango go to Durango Police.
Emergency
911. Cell coverage is patchy on most of these trails; a text to 911 can get through where a call cannot.

Numbers checked 2026-10-04. Colorado United is an independent guide, not the land manager; wallets, keys, and dogs found on the trail go to the offices above.

Frequently Asked Questions

How long does the Engineer Mountain Trail take?

Most hikers finish the 6-mile route in about 5 hours, plus stops. Allow extra time at altitude and for photos.

How hard is the Engineer Mountain Trail?

It is rated hard, with 2,300 feet of gain over 6 miles and a high point of 12,968 feet. Come with conditioning and high-country experience.

Is the Engineer Mountain Trail dog-friendly?

Yes, leashed dogs are allowed. Pack water for them and clean up after them.

When is the best time to hike the Engineer Mountain Trail?

The best seasons are summer and fall. Start early to beat both the crowds and Colorado's afternoon thunderstorms.

Do I need a pass or permit for the Engineer Mountain Trail?

No pass or permit is required to park, though popular lots still fill early on summer weekends.

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Trail Information

County:La Plata
Nearest City:Durango
Parking Pass:No Pass Required
Dog-Friendly:Yes
Kid-Friendly:No

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