St. Mary's River State Park

Callaway, Maryland
Established 1968
2,100 acres

St. Mary's River State Park, located in southern Maryland, features a 250-acre lake surrounded by scenic woodlands, offering opportunities for fishing, boating, hiking, and wildlife observation. The park provides a peaceful natural escape with well-maintained picnic areas and a multi-use trail encircling the lake.

Entrance Fee

3

Visiting with Dogs

Dogs allowed on leash; must be attended at all times. Clean up required. Restrictions may apply in certain areas.

Visitor Tips & Reviews

What Visitors Say

Visitors love St. Mary's River State Park for its scenic trails, peaceful lake, abundant wildlife, excellent fishing, and family-friendly atmosphere, making it a favorite spot for outdoor recreation.

Tips from Visitors

  • Bring insect repellent, especially in summer months.
  • Pack water and snacks for your visit.
  • Wear sturdy shoes for hiking trails.
  • Check weather and park alerts before arrival.
  • Respect wildlife and stay on marked paths.
  • Arrive early for best parking availability.

Amenities

Kids PlaygroundRestroomsParkingPicnic AreasBoat RampFishing PierPavilionsMulti-use Trail

Nearby Attractions

Explore these attractions near St. Mary's River State Park:

  • Patuxent River Naval Air Museum
    A museum dedicated to naval aviation history, with aircraft displays and interactive exhibits.
    9 miles away
  • Historic St. Mary's City
    Maryland's first colonial settlement and capital, featuring living history exhibits and archaeological sites.
    11 miles away
  • Point Lookout State Park
    A scenic park at the southern tip of Maryland, known for its Civil War history and beautiful bay views.
    23 miles away

Things to Do at St. Mary's River State Park

FishingBoatingHikingPicnickingWildlife Viewing

Camping at St. Mary's River State Park

Camping is not available at St. Mary's River State Park; consider Point Lookout or Cedarville State Forest nearby.

Hiking Trails

St. Mary's River State Park offers scenic day hiking with a well-maintained 7.5-mile loop trail that winds through lush forests and around the serene lake. Hikers often enjoy wildlife sightings, peaceful water views, and shaded paths. The terrain is mostly flat with some gentle inclines, making it suitable for all skill levels. It's a favorite spot for families, birdwatchers, and nature enthusiasts seeking a quiet outdoor escape.

St. Mary's Lake Loop Trail

Moderate

A scenic loop trail that circles St. Mary's Lake, offering views of the water, forest, and wildlife. Suitable for hiking, biking, and running.

7.5 mi
3 hours
200 ft gain
Moderate difficulty

Blue Trail

Easy

A shorter trail that winds through wooded areas and along the lake shore, ideal for families and beginners.

2.2 mi
1 hour
80 ft gain
Easy difficulty

Red Trail

Moderate

A moderately challenging trail with rolling hills and diverse forest scenery, perfect for those seeking a bit more adventure.

3.1 mi
1.5 hours
120 ft gain
Moderate difficulty

Green Trail

Easy

A gentle, well-marked trail suitable for a quick hike or nature walk, featuring wildflowers and birdwatching opportunities.

1.5 mi
40 minutes
60 ft gain
Easy difficulty

Directions

From MD-5 in Callaway, turn onto Camp Cosoma Road and follow signs to the park entrance. Parking is available near the main lake area.

Frequently Asked Questions

What activities can I do at St. Mary's River State Park?

Visitors enjoy hiking, fishing, boating, picnicking, and wildlife viewing. The park features a 7.5-mile trail around the lake and offers boat rentals during warmer months.

Are there any entrance or parking fees?

Yes, there is a small entrance fee per vehicle, typically collected at a self-pay station. Fees help maintain park facilities.

Can I swim in St. Mary's Lake?

Swimming is not permitted in St. Mary's Lake. However, visitors can fish, kayak, canoe, and enjoy other water activities.

Are dogs allowed in the park?

Yes, dogs are welcome but must be kept on a leash at all times. Owners are responsible for cleaning up after their pets.

Is camping available at St. Mary's River State Park?

No, camping is not available at this park. The park is open for day use only, from sunrise to sunset.

What kind of fish can I catch in the lake?

Anglers commonly catch largemouth bass, bluegill, crappie, and catfish. A valid Maryland fishing license is required for those 16 and older.

Location
camping and backpacking gear

Don’t Forget the Essentials

Essential camping & hiking gear we recommend to make your park trip easier and more comfortable.

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