Saint Mary'S River State Park is a state park in St. Mary's County, Maryland, encompassing approximately 2,000 acres. The park features a diverse landscape of wooded areas, fields, swamps, and streams, centered around the 250-acre St. Mary's Lake. This varied environment provides suitable terrain for several sports like hiking, jogging, road cycling, and touring cycling. Its largely undisturbed nature preserve status supports abundant plant and animal species, making it a location for outdoor exploration.
29
Routes
5
(18)
Average rating
173
People visited

7.63km
01:57
30m
20m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

8.96km
02:18
40m
50m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.

1.02km
00:16
10m
10m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.

743m
00:11
0m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
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11
runners
11.8km
01:25
40m
40m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

12
runners
6.57km
00:41
20m
20m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

8
runners
13.0km
01:20
30m
30m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

6
runners
17.8km
01:50
40m
40m
Hard run. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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5.0
(1)
19
riders
34.5km
01:32
150m
150m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

8
riders
55.9km
02:12
240m
240m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

5.0
(1)
6
riders
45.4km
02:00
220m
220m
Easy road ride. Great for any fitness level. Mostly well-paved surfaces and easy to ride.

7
riders
75.3km
03:19
330m
330m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
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5.0
(5)
6
riders
22.7km
01:19
70m
70m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

5.0
(5)
5
riders
16.8km
01:00
40m
40m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

6
riders
14.2km
00:49
40m
40m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.

6
riders
30.8km
01:48
140m
140m
Easy bike ride. Great for any fitness level. Mostly paved surfaces. Suitable for all skill levels.
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Saint Mary'S River State Park offers opportunities for hiking, jogging, road cycling, and touring cycling. The park features a 250-acre lake and diverse landscapes across approximately 2,000 acres (809 hectares). Visitors can explore various routes designed for different activity levels.
The park features an 8-mile (12.9 km) single-track dirt trail that loops around St. Mary's Lake, popular for hiking and jogging. This trail includes varied terrain with uphills, downhills, and exposed tree roots. Additional trails are being developed, extending the total length to over 11 miles (17.7 km).
The park's main trail around St. Mary's Lake is generally considered moderate due to varied terrain. However, some sections may be suitable for beginners, and the park is developing additional trails. For specific easy options, consult the Easy hikes in Saint Mary'S River State Park guide.
Yes, the park offers routes for road cycling and touring cycling. While known for its single-track dirt trails around the lake, some sections or connecting routes may be suitable for less rugged cycling. Explore the Road Cycling Routes in Saint Mary'S River State Park guide for more information.
Saint Mary'S River State Park is characterized by wooded acres, fields, swamps, and small streams. The central feature is the 250-acre (101 hectare) St. Mary's Lake, designated as a trophy bass lake. This diverse ecosystem supports abundant plant and animal species.
Yes, the park is popular for jogging, particularly the 8-mile (12.9 km) single-track dirt trail that encircles St. Mary's Lake. This trail offers natural scenery and varied terrain. More details can be found in the Running Trails in Saint Mary'S River State Park guide.
The park's varied habitats make it a location for wildlife viewing and birdwatching. Observations include forest birds, freshwater shoreline birds, Red-headed Woodpeckers, Tree Swallows, and various warblers during migration. The diverse ecosystem supports abundant plant and animal species.
Saint Mary'S River State Park has received an average rating of 5.0 out of 5 stars from 33 ratings on komoot. More than 200 visitors have shared their experiences in the park. There are 3 routes available across various sports.
Komoot offers several guides for the park, including Hiking in Saint Mary'S River State Park, Running Trails in Saint Mary'S River State Park, and Road Cycling Routes in Saint Mary'S River State Park. Additional guides cover easy hikes, general cycling, and traffic-free bike rides.
The official website for Saint Mary'S River State Park can be found through the Maryland Department of Natural Resources. The main phone number for the park is +1-301-872-5688.

