Marsh Creek State Park in Chester County, Pennsylvania features the 535-acre Marsh Creek Lake (designated “big bass lake”), 21 miles of trails, horseback riding, and year-round fishing just 45 minutes from Philadelphia!
535-Acre “Big Bass” Lake
| Lake Info | Details |
|---|---|
| 💧 Size | 535 acres |
| 🎣 Designation | “Big Bass Lake” |
| 🐟 Species | Bass, crappie, bluegill, trout |
| 🚤 Boat Launch | 24-hour access |
Fishing Regulations (2026)
| Regulation | Details |
|---|---|
| 🎣 Lines | Max 3 lines |
| 🐟 Bass No-Harvest | 2nd Sat April–2nd Sat June |
| 🌿 Fish-for-Free Days | May 24 & July 4, 2026 |
| 🎿 Ice Fishing | 4″ ice minimum |
Boating
| Boating Info | Details |
|---|---|
| ⚡ Electric Motors | ✅ Allowed |
| ⛽ Gas Motors | ✅ Allowed |
| 🛟 Life Jacket | Required Nov 1–Apr 30 |
21 Miles of Trails
| Trail Type | Details |
|---|---|
| 🥾 Hiking | 64 trail options |
| 🚴 Mountain Biking | 63 trails |
| 🐴 Horseback | 46 horse trails, 7mi dedicated |
FAQ
Wildlife & Nature
Marsh Creek State Park — in Contra Costa County — provides recreation along Marsh Creek in the eastern San Francisco Bay Area foothills. The creek corridor supports riparian woodland with willows, valley oaks, and cottonwoods. Red-tailed hawks and red-shouldered hawks hunt from perches. Great blue herons wade the creek. Western pond turtles sun on logs. Steelhead trout may use the creek system.
Nearby Attractions
Brentwood — adjacent — has the East Contra Costa wine region. Mount Diablo State Park — 10 miles west — has summit views spanning 200 miles. Black Diamond Mines Regional Preserve — 5 miles north — has coal mining history. Antioch — 10 miles north — has the Antioch Dunes NWR (with the rare Antioch Dunes evening primrose).
Why is it called a “Big Bass Lake”?
Marsh Creek Lake has special big bass regulations. From the 2nd Saturday of April to the 2nd Saturday of June, all bass must be immediately released—no harvest allowed.
Can I bring a motorboat?
Yes! Both electric and gasoline motors are permitted. Boat launch access is 24 hours at 800 North Reeds Road.
Are there riding lessons?
Yes! Hope Springs Farm at Marsh Creek offers lessons for all ages and skill levels, with a focus on adult riders.
🐴 Philly’s Outdoor Escape
Visit PA DCNR website.
Things to Do
Pennsylvania parks feature deep hardwood forests, river gorges, and expansive lakes. Activities include hiking the Appalachian Trail, boating and sailing, fly fishing for trout, whitewater rafting, camping, mountain biking, and exploring old-growth forest remnants.
Best Time to Visit
Fall is magnificent with one of the best foliage displays in the country. Summer is busiest for lake swimming. Spring brings high water great for paddling. Winter offers snowmobiling and cross-country skiing.
Visitor Tips
Free admission at all state parks. Camping reservable 11 months in advance. Ohiopyle and Ricketts Glen are most popular — wear sturdy, grippy footwear on wet waterfall trails.
Explore More Pennsylvania State Parks
Marsh Creek State Park is one of many outstanding state parks in Pennsylvania. Discover more parks in our Best State Parks in Pennsylvania guide, or use our Park Finder to search by activity, location, or features.
More parks nearby: French Creek State Park is a short drive away, while Valley Forge State Park lies a short drive away.
🐾 Dogs & Pets at Marsh Creek State Park
- Pets allowed? statewide rule
- Pets are allowed in day-use areas of Pennsylvania state parks and in designated campground sites, but must be physically controlled, attended at all times and leashed, caged or crated.
- Leash rule statewide rule
- Leash required at all times; no universal maximum length — inquire at the park office (electronic fences/shock collars not accepted as control)
- Beaches & swim areas statewide rule
- Pets are prohibited in swimming areas and designated beaches
- Cabins & lodging statewide rule
- Dogs allowed in a limited number of designated cabins, cottages and yurts (pilot program); maximum two dogs per unit; dogs must be house-trained and current on rabies vaccination
- Pet fees statewide rule
- No standard statewide pet fee; fees may be assessed for damage in dog-friendly lodging
- Statewide exceptions statewide rule
- Maximum two non-caged pets per campsite; pets prohibited in buildings; pet food may not be left outside camping units
Are dogs allowed at Marsh Creek State Park?
Pets are allowed in day-use areas of Pennsylvania state parks and in designated campground sites, but must be physically controlled, attended at all times and leashed, caged or crated. Individual parks can post stricter rules — check signage on arrival.
Rules verified July 2026 via pa.gov. More: Pennsylvania state parks guide · Dog rules in all 50 states compared
Park Location
Plan your gear for Marsh Creek State Park
From our editorial guides, matched to this park’s activities:
