Old Salmon Falls Assembly Area is a designated trailhead and parking area within Folsom Lake State Recreation Area offering access to historic Gold Rush-era ruins that become visible during low water periods.

The facility includes paid parking, restrooms, picnic tables, and bike lanes, with trails suitable for hiking and biking of varying difficulty levels.

Water levels fluctuate seasonally, making visibility of the historic Old Salmon Falls Bridge and settlement foundations dependent on drought conditions, typically best during spring and dry seasons.