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Lake · South Dakota

Lake Oahe

487 m1,598 ft
Area
1,310 km²
Max depth
62 m
Tonight
44°FPartly cloudy · Wind 8–32 mph SW

Lake Oahe is a lake at 487 m above sea level in South Dakota, United States, 1,310 km² in area and 244.0 km long.

All facts
Surface elevation
487 m
Length
244.0 km
Shoreline
2,245.9 km
Open the 3D view
Lake

Lake Oahe in numbers

Shoreline from OpenStreetMap.

Shoreline
2,245.9 km
3D map

Lake Oahe 3D map

Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 20 × 20 km

Surface
Vertical scale
Topographic map

Lake Oahe terrain and contours

10 m contours from the USGS 3DEP 10 m terrain model. Click two points on the map to draw your own cross-section.Tap two points on the map to draw your own cross-section.

Index contours every 50 mShowing west → east through the centre

Lake Oahe elevation profile

West → east through the centre

Hover the profile to read elevation and distance.Tap or drag along the profile to read elevation and distance.
Weather

Lake Oahe weather

Tonight · Partly cloudy · 44°F (7°C) · 19% chance of precipitation · Wind 8–32 mph SW

Lake Oahe forecast for about 491 m.

  • Tonight44°19%8–32 mph SW
  • Sat36°54°4%14–35 mph NW
  • Sun34°48°67%7–12 mph E
  • Mon33°45°65%14 mph ENE
  • Tue38°52°18%7–16 mph SE
  • Wed34°58°10%15–23 mph W
  • Thu34°53°6%8–12 mph NNW

Forecast data: NOAA National Weather Service, public domain, model run Oct 24, 01:21 UTC.

Camping & parking

Camping & parking near Lake Oahe

Campsites, parking, trailheads and mountain huts mapped in OpenStreetMap around Lake Oahe, nearest first, by straight-line distance. Check access, fees and permits locally.

  • Nearest parking

    1.0 km E

    +2 more within 1.8 km

    DirectionsMap

  • Nearest campsite

    Campground 1

    2.0 km SSE · +2 more within 3.2 km

    DirectionsMap
All mapped places 6
PlaceDistance
Parking1.0 km E
Parking1.6 km SE
Parking1.8 km WSW
Campground 1Campsite2.0 km SSE
Campground 2Campsite2.4 km SSE
Campground 3Campsite3.2 km SSE
Slope

Slope

Share of the 20 × 20 km view by steepness, from the 10 m model.

Mostly gentle: 97% of the view is under 15°.

Gentle, 0–15°
96.7%
Moderate, 15–30°
3.2%
Steep, 30–45°
0.1%
Cliffs, 45° and over
0.0%
Steeper than 30°
0.1% of the 400 km² view
Relief in view
156 m low point 434 m
Land cover

Land cover

ESA WorldCover 10 m classification of the same area.

Cropland 41.9%Grassland 38.1%Water 14.2%Built-up 2.5%Trees 2.3%Bare rock / sparse 1.0%

Snow & ice means glaciers and year-round snow (a yearly average), not today’s snow cover.

Wildlife

Wildlife seen nearby

Sightings of the most-seen species on iNaturalist (research grade) within 10 km; 636 species recorded in all.

Sightings per species 6
  • Bald Eagle134
  • Ring-billed Gull133
  • American Robin111
  • Mallard91
  • Double-crested Cormorant91
  • Common Merganser89
Where it sits

Where Lake Oahe sits

Region
South Dakota6United States932North America1,313
Nearby

Nearby places

Downloads

Lake Oahe downloads: topographic map, heightmap, STL 3D model and DEM

Free files made in your browser from this page's terrain data. No sign-up; credit the sources below.

Print & wall
3D printing & 3D apps
GIS & GPS
</>Embed this mapPaste this into your site to show the interactive 3D terrain, with a credit link back here.<iframe src="https://topolu.com/embed/lake-oahe" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Lake Oahe"></iframe> <p><a href="https://topolu.com/lake-oahe" rel="nofollow">Topolu</a></p>

Free to use with credit: see the data sources

Sources

Data sources

Terrain
U.S. Geological Survey, 3D Elevation Program (public domain)
Imagery
Contains modified Copernicus Sentinel data 2026 (scene 2026-07-16)
Land cover
© ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
Facts
Wikidata (CC0)
Camping & parking, Geometry
© OpenStreetMap contributors (ODbL)
Summits
© OpenStreetMap contributors, via Overture Maps Foundation (ODbL)
Protected area
USGS Gap Analysis Project, PAD-US (public domain)
Wildlife
iNaturalist community observations, counts only
Forecast
Weather forecast from NOAA National Weather Service (public domain)
Sources
Wikidata · GeoNames · Wikipedia