From Carbondale, drive 21.5 miles south on CO 133. Turn left on Gunnison County Road 3 toward the town of Marble (this road may be labeled as FR 314 on some maps). Measure the mileage from here:
- Drive 5.5 miles to the center of Marble and continue through the town.
- Pass a church at 5.8 mi. and Beaver Lake at 6.2 mi.
- At 7.0 miles, the road becomes rough.
- At 7.7 miles, there is a junction. Turn left on FR 315 (Lost Trail Road) for Lead King Basin.
- The remaining 6+ miles is rough and narrow. 4wd vehicles only.
- At 9.7 miles, there is another junction. Stay left on FR 315.
- After a long drive with many switchbacks, cross a small stream to reach a corner at 13.8 miles.
- Continue a bit farther south down the road and cross the creek again to reach the actual trailhead, shortly after. The trail starts on the east side of the road, in the parking area.