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 6 come with LakeScope PRO. Full screen
Tomhannock Reservoir
Rensselaer County, New York · about 1,610 acres (2.5 sq mi)
59°F water, calm this morning.
About Tomhannock Reservoir
Tomhannock Reservoir is a lake in Rensselaer County, New York, covering about 1,610 acres.
It stretches about 4 miles end to end and its shoreline adds up to about 14.2 miles. Its surface is about 390 ft above sea level. The nearest town, Cropseyville, is about 4.7 miles south. The closest city is West Albany, about 16 miles away.
- Size
- About 1,610 acres (2.5 sq mi)
- Shoreline
- About 14.2 miles
- End to end
- About 4 miles
- Elevation
- About 390 ft
- County
- Rensselaer County
The lake from above
Best fishing times
Saturday Good
- 6:15 am – 8:30 amsunrise · wind 3 mph
- 3:00 pm – 5:15 pm bestsunset, moon overhead · wind 7 mph
Sunday Good
- 6:15 am – 8:30 amsunrise · wind 5 mph
- 3:45 pm – 5:15 pm bestsunset, moon overhead · wind 8 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 New York, 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. With the surface at 59°F, the notes below say which of them should be biting.
- GoodLargemouth bass
Fall feed. They chase baitfish into creeks and coves.
- GoodCrappie
Active. Brush piles and docks in 8 to 15 ft.
- FairBluegill and sunfish
Warming. Shallow, sunny pockets in the afternoon.
- FairCatfish
Waking up. Channels and creek mouths, especially after rain.
From today's water temperature and the season. A guide, not a promise.
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
- 6
- 7
6 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
At the surface, seen .
Water level
No daily level reading for this lake.
Ice
Open water
Ice thickness is an estimate from air temperature, not a measurement. Check the ice yourself before going on it.
Weather and wind
Sunrise 6:43 am · sunset 4:32 pm · waxing crescent moon (lake time).
Towns and places to stay near Tomhannock Reservoir
- Cropseyvilleabout 4.7 mi south
- Mechanicvilleabout 5.7 mi northwest
- Stillwaterabout 5.9 mi northwest
- Waterfordabout 6.7 mi southwest
- West Albanynearest city, about 16 mi southwest
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Questions about Tomhannock Reservoir
What fish are in Tomhannock Reservoir?
Lakes like Tomhannock Reservoir usually hold largemouth bass, crappie, bluegill and sunfish and catfish. Check the state fish and wildlife agency for stocking and limits.
How deep is Tomhannock Reservoir?
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 Tomhannock Reservoir?
About 1,610 acres, with about 14.2 miles of shoreline.
What town is near Tomhannock Reservoir?
Cropseyville is about 4.7 miles south; Mechanicville is about 5.7 miles northwest.
What is the water temperature at Tomhannock Reservoir today?
The surface was about 59°F on the latest clear reading. The page updates every day.
Tomhannock Reservoir on your phone
The whole week of bite times, lake alerts and the 3-D view, every morning.
