Big Cottonwood Canyon is on the east side of the Salt Lake City Valley. Get there by taking I-215 to the east, taking exit 6 off the interstate and heading east.

Follow 6200 South which becomes Wasatch Blvd for 1.8 miles to the stop light and signs for Big Cottonwood Canyon.

Turn left at the light and reset your odometer.

Drive up Big Cottonwood Canyon 14 miles to the small community of Brighton. At the loop, go right, with Brighton Ski resort just ahead. Parking in the large parking lot near the main Brighton Ski Resort Building.

To Lake Mary (1.25 miles one way)
From the Brighton parking lot, go just right (south) of the main Brighton building. A path leads up the slope, then heads right and passes between large logs to become a single narrower track. The single track switchbacks up the hillside, crossing under the ski lifts, before heading more south. After a short steep section is a junction to Dog Lake.

Dog Lake is a recommended side trip and takes only a few minutes. At the intersection to Clayton Peak, stay right for Dog Lake.

From the Dog Lake junction, it is a couple of minutes to the Lake Mary/Twin Lakes junction. Stay left here, passing under the Lake Mary Dam, then up to the lake proper.

To Lake Catherine (1 mile from Lake Mary)
From Lake Mary, the trail follows the shoreline south, then begins climbing. You can see Lake Martha below as the trail climbs, but it is not directly along the trail.

Past Lake Martha, the trail continues to climb steeply, leaves the trees, and the headwall of Catherine Pass comes into view. At the junction, left goes to Lake Catherine in a minute or two and is a nice side trip. For Sunset Peak, stay right.

To The Summit ( 1 mile from Lake Catherine)
The trail soon climbs the steep rocky slope to Catherine Pass with glimpses into Little Cottonwood Canyon and the ridges to the south. The ridge is a mess of trails from here. Stay on the most used trail that climbs the ridge via a couple of switchbacks.

At the ridge, go right for a minute or two to another junction, then left at a signed junction for TR 157. From this junction, the trail stays closer to the ridgeline proper and is easy to follow — the trail winds around the east side of the peak and up to the summit.