Folsom Lake Sweetwater Trail Run

El Dorado Hills, United States • 23 Jan 2027

Folsom Lake Sweetwater Trail Run : Folsom Lake State Recreation Area

This event takes place at the Salmon Falls Parking Lot in Folsom Lake State Recreation Area, El Dorado Hills, CA. The trails are about 95% single-track and 5% dirt road, largely following the South Side Trail along Folsom Lake. The course passes through oak trees and grassy sections and includes gently rolling hills and some technical stretches.

Distances offered:

  • Kids Run (19 ft. ascent)
  • 1 Mile (114 ft. ascent)
  • 5K (259 ft. ascent)
  • 10K (734 ft. ascent)
  • 9 Mile (990 ft. ascent)
  • Half Marathon (1,555 ft. ascent)
  • 30K (2,106 ft. ascent)
  • Trail Marathon (3,001 ft. ascent)
  • 50K (3,356 ft. ascent)

Courses are out-and-back routes marked with ribbons, signs, and gypsum. There is a creek crossing that may cause wet feet and slippery rocks; an alternate route that avoids the creek may be used in inclement weather. Toilets are available at the start/finish and at aid stations on course. Multiple aid stations and water stops are provided; some aid stations have cutoffs and the event enforces a 9-hour overall time limit. Drop bags can be checked at registration for delivery to specified aid stations; participants are advised not to place electronics or valuables in drop bags. Dogs are not permitted on the course due to narrow single-track sections and participant volume. Volunteers are used to staff aid stations and assisting volunteers receive a future race credit. Visit the organization's website for the most recent information.

Race information

50 km
50k
Marathon
Trail Marathon
30 km
30k
13 mi
Half Marathon
9 mi
9 Mile
10 km
10k
5 km
1 Mile
Kids Run
Visit the organization's website for the most recent information.
Trail runs nearby

Multi-distance trail event at Sly Park Recreation Area in Pollock Pines, CA on August 22, 2026, with marked courses, aid stations, and commemorative medals.

A trail 5K and 10K at Granite Beach for runners with or without dogs, featuring shaded single-track trails, mid-course aid stations, finisher medals and dog bandanas.

A two-day Spartan obstacle race at Mahon Ranch near Sacramento featuring Sprint 5 km, Super 10 km, kids races, team entries, volunteer options and spectator access.

Trail races at Mammoth Bar OHV Area in Auburn State Recreation Area on September 6, 2026. Options include a 13.1 mile half marathon and a 6.2 mile 10K, each with notable elevation gain and staffed aid stations.

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