San Gregorio Reservoir Access offers a trailhead parking area with a 10-15 car capacity and vault toilet at 9,300 feet elevation in the San Pedro Parks Wilderness.

The reservoir is approximately one mile from the trailhead via a gradual climbing trail through spruce forest, with a $5 per vehicle day-use fee.

This access point serves as a gateway for fishing, hiking, and horseback riding, though motorized and mechanized use is prohibited within the wilderness area.