Saint Marys Lake Trail Series

February 28th 2026
Leonardtown, MD

Situated at the northern end of the St. Mary's River watershed, Saint Mary’s Lake is a 250 acre freshwater lake with a 7.5 mile main route along the lake, and approximately 8 miles of additional trails in the connected Salem Forest. The trail system is only a few miles from your typical chain shops and stores as well as many local restaurants and amenities. The trail itself is very tranquil, surrounded mainly by forests with some sections (~½ mile) backing up to neighborhoods.

The trail series will be 1, 2, or 3 laps of an ~10.5 mile loop along the lake perimeter and into Salem Forest. The main aid station will be located at the main entrance to St Marys Lake (also the start/finish of the event) on Camp Cosoma Road. A second aid station will be located approximately halfway through the loop at the Salem Forest parking lot on Indian Bridge Road.

The route is comprised of ~75% single track dirt/root/rock/wooden bridge, 20% forest road, and 5% crushed gravel along the dam. A gpx file of the route provided here (https://api.sports-tracker.com/apiserver/v2/routes/export/cWbl5JkP7VUTUdCv4tTuA95ciNHxXOU7DBZeyMQzjBxdVC0DecT62V-9diVMsgwv?brand=SUUNTOAPP&format=gpx-route) and trail markings will be present. Depending on conditions, some mud and wet sections may be present that can usually be avoided while staying on the trail. There are no significant climbs or descents, but there are several small hills that total ~500ft of elevation gain/descent on each lap.  

The trail is generally fast and is a great venue for a first trail race or expanding your current distance goals. Check-in for all distances begins at 0630. All distances will begin at 0730 and will have a cutoff time of 1600 (8.5 hours). Runners are required to begin their final lap by 1300 or will be asked to run independently of the race event for the remainder.

Additional Distances

This event also has the following sub ultra distances

34 KM 17 KM

Results

Date Finishers Top Result (F) Top Result (M)
02/28/26 31 4:40:12 4:31:08
02/22/25 26 4:27:21 4:50:45
04/07/24 9 6:00:00 4:28:16

Weekly Newsletter

A roundup of the week's content and most recent race results. Sent once a week on Thursday.

Recent Results

Teton Mountain Runs
Teton Village, WY - 43 finishers
50 KM
Dirty Burg
Belmont, MI - 23 finishers
50 KM
Windsor Castle 10-Hour
Smithfield, VA - 55 finishers
10 Hours | 5 Hours
Coal & Coke Fireworks 30/10 Miler
Mt Pleasant, PA - 11 finishers
30 Miles
The Revolution
Redding, CT - 53 finishers
12 Hours | 6 Hours
Yellowstone 50K Trail Race
West Yellowstone, MT - 9 finishers
50 KM
Stunner Night Runs
Mesa, AZ - 64 finishers
50 KM
San Lorenzo River Trail Run
Santa Cruz, CA - 42 finishers
50 KM
Dances with Dirt - Devil's Lake
Baraboo, WI - 166 finishers
50 Miles | 50 KM
Slow and Tired's Bad Idea
Enoree, SC - 19 finishers
50 KM
View All Results