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Keystone Reservoir Water Details - MT

Keystone Reservoir is a reservoir in Beaverhead County, MT. Use this named-water page to check the map, current conditions, and nearby water-quality monitoring; confirm public access, regulations, advisories, and fishability with local sources before fishing.

This named-water page is not a claim that fishing is legal, safe, or productive here. Check public access, local regulations, fish-consumption advisories, and posted closures before fishing.

© OpenStreetMap contributors · open Keystone Reservoir in OpenStreetMap or use coordinates 44.82916, -113.02782.

Current conditions & 3-day forecast

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Weather by Open-Meteo.

Water temperature & water-quality monitoring

Check the official EPA assessment (impaired-waters status and fish-consumption advisories) for Keystone Reservoir at How’s My Waterway (EPA).

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Monitoring summaries from the Water Quality Portal.

State fishing records

Arctic Grayling 3.63 lbs. β€” Montana Fish, Wildlife & Parks
Big Mouth Buffalo 57.75 lbs. β€” Montana Fish, Wildlife & Parks
Black Bullhead 2.60 lbs. β€” Montana Fish, Wildlife & Parks
Black Crappie 3.45 lbs. β€” Montana Fish, Wildlife & Parks
Bluegill 2.64 lbs. β€” Montana Fish, Wildlife & Parks
Blue Sucker 13.29 lbs. β€” Montana Fish, Wildlife & Parks
Brook Trout 9.06 lbs. (1940) β€” Montana Fish, Wildlife & Parks
Brown Trout 32.42 lbs. β€” Montana Fish, Wildlife & Parks
Bull Trout 25.63 lbs. (1916) β€” Montana Fish, Wildlife & Parks
Burbot 17.08 lbs. β€” Montana Fish, Wildlife & Parks
Channel Catfish 35.18 lbs. β€” Montana Fish, Wildlife & Parks
Chinook Salmon 32.65 lbs. β€” Montana Fish, Wildlife & Parks
Cisco 2.08 lbs. β€” Montana Fish, Wildlife & Parks
Coho Salmon 4.88 lbs. β€” Montana Fish, Wildlife & Parks
Common Carp 40.2 lbs. β€” Montana Fish, Wildlife & Parks
Creek Chub 0.52 lbs. β€” Montana Fish, Wildlife & Parks
Cutthroat Trout 16 lbs (1955) β€” Montana Fish, Wildlife & Parks
Emerald Shiner 0.01 lbs. β€” Montana Fish, Wildlife & Parks
Fathead Minnow 2.7 .01 lbs. β€” Montana Fish, Wildlife & Parks
Flathead Chub 0.59 lbs. β€” Montana Fish, Wildlife & Parks
Freshwater Drum 21.59 lbs. β€” Montana Fish, Wildlife & Parks
Golden Shiner 0.39 lbs. β€” Montana Fish, Wildlife & Parks
Golden Trout 5.43 lbs. β€” Montana Fish, Wildlife & Parks
Goldeye 3.18 lbs. β€” Montana Fish, Wildlife & Parks
Green Sunfish 0.85 lbs. β€” Montana Fish, Wildlife & Parks
Kokanee Salmon 7.85 lbs. β€” Montana Fish, Wildlife & Parks
Lake Chub 0.075 lbs. β€” Montana Fish, Wildlife & Parks
Lake Trout 42.69 lbs. β€” Montana Fish, Wildlife & Parks
Lake Whitefish 10.46 lbs. β€” Montana Fish, Wildlife & Parks
Largemouth Bass 9.58 lbs. β€” Montana Fish, Wildlife & Parks
Largescale Sucker 6.86 lbs. β€” Montana Fish, Wildlife & Parks
Longnose Dace 0.01 lbs β€” Montana Fish, Wildlife & Parks
Longnose Sucker 4.78 lbs. β€” Montana Fish, Wildlife & Parks
Mountain Sucker 1.60 oz. β€” Montana Fish, Wildlife & Parks
Mountain Whitefish 5.11 lbs. β€” Montana Fish, Wildlife & Parks
Northern Pike 37.5 lbs. β€” Montana Fish, Wildlife & Parks
Northern Pikeminnow 7.88 lbs. β€” Montana Fish, Wildlife & Parks
Paddlefish 142.5 lbs. β€” Montana Fish, Wildlife & Parks
Pallid Sturgeon 60 lbs. β€” Montana Fish, Wildlife & Parks
Peamouth 1.52 lbs. β€” Montana Fish, Wildlife & Parks
Pumpkinseed 0.995 lbs. β€” Montana Fish, Wildlife & Parks
Pygmy Whitefish 0.36 lbs. β€” Montana Fish, Wildlife & Parks
Rainbow Smelt 0.08 lbs. β€” Montana Fish, Wildlife & Parks
Rainbow Trout 33.1 lbs. β€” Montana Fish, Wildlife & Parks
Rainbow-Cutthroat Hybrid Trout 30.25 lbs. β€” Montana Fish, Wildlife & Parks
Redside Shiner 0.10 lbs. β€” Montana Fish, Wildlife & Parks
River Carpsucker 7.915 lbs β€” Montana Fish, Wildlife & Parks
Rock Bass 1.31 lbs. β€” Montana Fish, Wildlife & Parks
Rocky Mountain Sculpin 0.063 lbs. β€” Montana Fish, Wildlife & Parks
Sauger 8.805 lbs. β€” Montana Fish, Wildlife & Parks
Saugeye 15.66 lbs. β€” Montana Fish, Wildlife & Parks
Shorthead Redhorse 4.68 lbs. β€” Montana Fish, Wildlife & Parks
Shortnose Gar 7.41 lbs. β€” Montana Fish, Wildlife & Parks
Shovelnose Sturgeon 14.125 lbs. β€” Montana Fish, Wildlife & Parks
Smallmouth Bass 8.4 lbs. β€” Montana Fish, Wildlife & Parks
Smallmouth Buffalo 40 lbs. β€” Montana Fish, Wildlife & Parks
Spottail Shiner 0.02 lbs. β€” Montana Fish, Wildlife & Parks
Stonecat 0.54 lbs. β€” Montana Fish, Wildlife & Parks
Tiger Muskellunge 38.75 lbs. β€” Montana Fish, Wildlife & Parks
Tiger Trout 4.04 lbs. β€” Montana Fish, Wildlife & Parks

Official MT state-record fish are published by the Montana Fish, Wildlife & Parks β€” records there are the state's, not a MonsterRodHolders list.

Location facts

CountyBeaverhead
Water typereservoir