Closed to vehicles in the winter. Watch out for cars.
Lumsden Road is a Forest Service doubletrack dirt road that brings you from the top of the Tuolumne Canyon down into the canyon and right next to the river. This road is maintained by the Forest Service and mostly used by Rafting and Fishing guiding companies to get down on the river.
The road is a great way to climb out of the cayon or go down to get right next to the Tuolumne river. It's 5 miles long and slowly ascends along the river and the canyon side. From the bottom, the grade is very mellow and at the top it gets steeper and steeper. I suggest using this as an uphill and going downhill via the trail behind Buck Meadows.