Folsom Lake Sweetwater Trail Run

JAN
23
2027
A trail running event at Folsom Lake offering distances from a Kids Run to 50K on mostly single-track trails with multiple aid stations and a 9-hour limit.
Sat 23 Jan 2027
50 kilometers Marathon 30 kilometers 13 miles 9 miles 10 kilometers 5 kilometers

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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.

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

Events nearby

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.
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.
Mile Madness is a looped trail endurance event in Auburn, California, held September 18-21, 2026. Timed events run from 3 to 72 hours with a 0.75 mile loop and options including a 100 mile race plus on-site aid and amenities.
Trail runs at Granite Beach on Folsom Lake with new 10 mile and 5K courses, aid stations, age group awards, a finisher beer glass and a postrace meal.
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