The lake bed in 3-D: deep basin, drop-offs and shoreline. Shape estimated, not for navigation. Spot 1 (point drop-off) is open for everyone; the other 4 come with LakeScope PRO. Full screen
Blue Marsh Lake
Berks County, Pennsylvania · 1,150 acres (1.8 sq mi)
Level steady, windy Friday (15 mph N).
About Blue Marsh Lake
Blue Marsh Lake spreads over 1,150 acres in Berks County, Pennsylvania. It sits on the Tulpehocken Creek. Blue Marsh Lake is a U.S. Army Corps of Engineers flood-control reservoir near Reading, Pennsylvania.
It stretches about 3.8 miles end to end with roughly 17.9 miles of shoreline. At about 290 ft above sea level, it follows the seasons of the region. Spring Ridge lies about 2.4 miles to the southeast. The closest city is Reading, about 6 miles away.
- Size
- 1,150 acres (1.8 sq mi)
- Shoreline
- About 17.9 miles
- End to end
- About 3.8 miles
- Elevation
- About 290 ft
- Type
- Reservoir
- River
- Tulpehocken Creek
- County
- Berks County
The lake from above
Best fishing times
Saturday Fair
- 6:15 am – 8:30 amsunrise · wind 10 mph
- 3:15 pm – 5:30 pm bestsunset, moon overhead · wind 15 mph
Sunday Good
- 6:15 am – 8:30 amsunrise · wind 10 mph
- 4:00 pm – 5:30 pm bestsunset, moon overhead · wind 10 mph
Based on sun and moon times and the wind forecast. A guide, not a promise. The app shows the whole week.
Fish to expect
For a lake of this size in Pennsylvania, largemouth bass, crappie, bluegill and sunfish and catfish are the fish to expect. The state fish and wildlife agency lists what is stocked and the rules for this lake.
- Largemouth bass
- Crappie
- Bluegill and sunfish
- Catfish
Fishing spots
- 1Point drop-off
The bottom falls away fast off this point; fish rest deep and move up the slope to feed.
- 2
- 3
- 4
- 5
4 more spots with LakeScope PRO: fish, depth band, water temperature, best time and bait for each.
Picked from the shape of the lake bed. A guide, not a promise.
Water temperature
No clear reading right now. Narrow or small lakes often have none; the weather and bite times below still apply.
Water level
Steady over 7 days.
Latest reading .
Ice
No clear view of the ice yet
Ice thickness is an estimate from air temperature, not a measurement. Check the ice yourself before going on it.
Weather and wind
Sunrise 6:48 am · sunset 4:48 pm · waxing crescent moon (lake time).
Towns and places to stay near Blue Marsh Lake
- Spring Ridgeabout 2.4 mi southeast
- Whitfieldabout 2.5 mi southeast
- Colony Parkabout 2.9 mi southeast
- Sinking Springabout 2.9 mi southeast
- Readingnearest city, about 6 mi southeast
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Questions about Blue Marsh Lake
What fish are in Blue Marsh Lake?
Lakes like Blue Marsh Lake usually hold largemouth bass, crappie, bluegill and sunfish and catfish. Check the state fish and wildlife agency for stocking and limits.
How deep is Blue Marsh Lake?
We have no published depth for this lake. The 3-D view gives an estimated shape of the bed: where the deep basin and the drop-offs are. Not for navigation.
How big is Blue Marsh Lake?
1,150 acres, with about 17.9 miles of shoreline.
What town is near Blue Marsh Lake?
Spring Ridge is about 2.4 miles southeast; Whitfield is about 2.5 miles southeast.
Is the water warm enough to swim in Blue Marsh Lake?
Check the water temperature on this page before you go: under 70°F feels cold to most swimmers, and under 60°F cold-water shock is a real risk.
Blue Marsh Lake on your phone
The whole week of bite times, lake alerts and the 3-D view, every morning.
