Pioneer Express Trail Access provides equestrian and pedestrian access to a historic 23.

4-mile trail system along Folsom Lake and Lake Natoma, with the Granite Bay Horse Assembly Area offering dedicated equestrian staging facilities including hitching rails, water troughs, and vault toilets.

The trail is a California Historic Landmark (#585) commemorating Gold Rush-era routes and connects to Auburn State Recreation Area, making it ideal for day-use horseback riding and hiking with scenic lake views.