Home / South Dakota lakes / Lake Oahe
Army Corps reservoir (Missouri River)

Lake Oahe

South & North Dakota, South Dakota

A giant Missouri River reservoir behind Oahe Dam near Pierre. It's one of the best walleye lakes in the country, and it also has chinook salmon and smallmouth bass.

N10 mi
Air temp in Trail City, SD Loading current temperature…
Map data © OpenStreetMap contributors.
Surface area370,000 acres
Max depth205 ft
Shoreline2250 mi
Boat motorsCheck local rules

Species

Fishery rating out of 5.

Walleye●●●●●

Points, flats and reefs at low light. Jigs and live bait early, crankbaits and crawler harnesses in summer.

Smallmouth Bass●●●●○

Rock, gravel and points. Tubes, jerkbaits and drop-shots.

Northern Pike●●●○○

Weed edges and bays. Spoons, spinnerbaits and tip-ups through the ice.

Chinook Salmon●●●○○

Stocked. Deep water near the dam.

When they bite

Month-by-month activity for each target species.

JFMAMJJASOND
Walleye
Smallmouth Bass
Northern Pike
Chinook Salmon
SlowFairGoodHot

Boat launches

1 launch sites. Fees and hours change, so confirm before you go.

  • More public accessPublic
    See the SD GFP or lake website for all ramps and feesDirections ↗

Size & creel limits

Special rules for this lake, confirmed from official state regulations. Minimum size and daily limit.

SpeciesMin sizeDaily limit
Walleye
Missouri River lake rule, year-round
See South Dakota rules book ↗4 / day (only 1 may be 20 in or longer)

Other species in this lake: look up the limits at South Dakota Department of Game, Fish and Parks ↗

Verified October 2026. Rules change, so confirm current limits with the South Dakota Department of Game, Fish and Parks before you fish.

Bait & tackle nearby

Closest shops to the lake and its boat launches. Call ahead for live bait and hours.

Search more bait shops near Lake Oahe ↗

Local tips

Angler reports

Water temp, what's biting, and anything else other anglers should know about Lake Oahe.

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View on interactive map

Zoom and pan on a street, satellite or terrain map. Red pins are boat launches; blue pins are bait shops nearby.