Afternoon storm risk is the line that matters. Everything else is comfort. In summer, plan to be off the ridge before the build-up starts, not as it starts. Forecast for the summit point, adjusted for its elevation · data from Open-Meteo.
Colorado 13er · Northeast Ridge from Rustler Gulch
Overview
Golden Tops sits at the head of Rustler Gulch south of Cassi Peak. The route climbs the basin west of the two peaks, alongside a big rock glacier, to the Cassi-Golden Tops saddle, then follows Golden Tops' northeast ridge to the summit.
It is Class 2. The ridge is rock and small scree with something like a path, easier than neighboring Cassi. There are two summits separated by a nasty gap; the east one, where the register is, is the high point.
The round trip is about 9.4 miles with about 3,550 feet of gain. Mileage and gain are our estimates. Many people backpack a short way up Rustler Gulch and camp, then climb several of its six 13ers over a few days. Strong parties combine it with Cassi and even Precarious.
Plan of the day
Start by
From a Rustler Gulch camp, by 6:30 a.m.
Turnaround
Be at the Cassi-Golden Tops saddle by 10:30 a.m.
Crux
Rock-hopping near the rock glacier.
Route-finding
Moderate. Follow a side stream up beside the rock glacier rather than on it, then head for the saddle between Cassi and Golden Tops.
From Gunnison, take Highway 135 north to Crested Butte. Stay on the main road through town and continue north on County Road 317 to Mt. Crested Butte. Past the condos the pavement ends; measure from there.
At about 3.4 miles you pass Gothic, a research town with a small visitor center. Parking is limited to marked spots along this busy road. Gothic Campground (6 sites) is at about 5.3 miles. From June 15 to August 15, you may only camp in designated sites anywhere in this part of the East River valley.
At about 6.2 miles, FR 317.2B turns off for Rustler Gulch. Regular cars park here, and you wade the East River. Beaver dams have made the old vehicle ford a deep pool (as of 2025), so only a high-clearance 4WD should try it, ideally with a winch. Past the ford the road climbs steeply 0.7 mile to a gate with room for two or three cars.
Trail in the treesScramblingTundraRidgeTalus and screeExposed to lightning
The line is elevation, the band underneath is the ground, and the numbered dots match the steps below. Mileage and elevations are approximate.
1
Rustler Gulch turnoff 9,716' · 0 mi
Wade the East River and walk up the road.
Watch for: Can be deep in early summer.
2
Gate 10,050' · 0.9 mi
Past the gate, follow the old road north through a meadow, then a muddy, horse-churned stretch of forest.
3
Creek crossing 10,300' · 1.6 mi
Flower meadows lead to a creek crossing. You may need to take off your boots, or follow a side path right along the creek to a spot with small logs.
4
Upper Rustler Gulch 10,700' · 2.2 mi
The trail heads north, then turns east into the upper gulch through huge wildflower meadows.
5
Campsite 10,865' · 2.5 mi
Where the trail has clearly turned east and the creek tumbles over rock ledges below, cross the creek and climb east through fallen timber. Near the east edge of the trees is a small campsite for two tents, the only good spot here that doesn't flatten flowers.
Watch for: Take care not to trample the meadows.
6
Side stream 11,300' · 3.1 mi
Follow the trail into the upper gulch, then climb beside a side stream, on grass and through flowers, into the basin below the two peaks.
7
Rock glacier 12,200' · 3.7 mi
Keep to the side of the huge tongue of rock that fills the basin. Near its end it drops off very steeply, so don't try to climb onto it there.
8
Saddle 12,850' · 4.3 mi
Climb to the saddle between Cassi and Golden Tops.
9
Summit 13,262' · 4.7 mi
Follow the northeast ridge on small rock and scree to the east summit, which is the true high point. The west summit is across a deep gap.
Getting down
Return to the saddle; a steep gully off the ridge before the saddle has hard-packed scree and isn't worth it. From the saddle, drop northwest, get off the rock glacier early on the right into a side stream, and follow it down to tundra and the trail.
If things go wrong
From the saddle, the basin leads back to the trail.
3D flyover
No 3D flyover for this peak
Above the Rustler Gulch trail the route is trailless. A flyover only works when there is a set trail to trace. Without one, the line would be a guess, and a guess could send you the wrong way on the mountain. Use the step-by-step route with a good map and GPS track instead.
See the trail on video
No video yet
We haven’t found a good video of this route that matches the way we describe it. The route strip, junctions and 3D flyover show the way in the meantime.
This describes the route on a dry summer day. Most 13ers see few people, so there may be no one along behind you. Check recent conditions the week you go, carry a map, tell someone your plan, and turn around when the day tells you to.