Lake · Montana

Fort Peck Lake

685 m2,247 ft

Area: 828 km²
Tonight: 39°FLight rain · Wind 26–31 mph WNW

Fort Peck Lake is a lake at 685 m above sea level in Montana, United States, 828 km² in area and 136.5 km long.

All facts

Surface elevation: 685 m
Length: 136.5 km
Shoreline: 1,570.3 km

Open the 3D view

Lake

Fort Peck Lake in numbers

Shoreline from OpenStreetMap.

Shoreline: 1,570.3 km

3D map

Fort Peck Lake 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

Fort Peck Lake 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

Fort Peck Lake 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

Fort Peck Lake weather

Tonight · Light rain · 39°F (4°C) · 96% chance of precipitation · Wind 26–31 mph WNW

Fort Peck Lake forecast for about 685 m.

Tonight39°96%26–31 mph WNW
Sat37°50°–5–24 mph WNW
Sun39°51°1%12–16 mph E
Mon40°52°7%14–17 mph ESE
Tue39°52°29%7–12 mph ESE
Wed33°46°22%18 mph NW
Thu33°44°10%7 mph NW

Forecast data: NOAA National Weather Service, public domain, model run Oct 23, 18:50 UTC.

Slope

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

Mostly gentle: 87% of the view is under 15°.

Gentle, 0–15°

87.0%

Moderate, 15–30°

11.3%

Steep, 30–45°

1.6%

Cliffs, 45° and over

0.0%

Steeper than 30°: 1.6% of the 400 km² view
Relief in view: 167 m low point 677 m

Land cover

ESA WorldCover 10 m classification of the same area.

Water 44.5%Grassland 39.2%Trees 10.1%Bare rock / sparse 6.2%

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

Where it sits

Where Fort Peck Lake sits

Downloads

Fort Peck Lake 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

JPGFort Peck Lake satellite image (JPEG)Sentinel-2 true-colour image of the same area, taken 2026-08-01.

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/fort-peck-lake" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Fort Peck Lake"></iframe>
<p><a href="https://topolu.com/fort-peck-lake" 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 2026-08-01)
Land cover: © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
Facts: Wikidata (CC0)
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