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Lake · Washington

Lake Merwin

72 m236 ft
Area
15 km²
Tonight
40°FFair · Wind 1–6 mph NE

Lake Merwin is a lake at 72 m above sea level in Washington, United States, 15 km² in area and 14.0 km long.

All facts
Surface elevation
72 m
Length
14.0 km
Shoreline
40.9 km
Open the 3D view
Lake

Lake Merwin in numbers

Shoreline from OpenStreetMap.

14.0 km longest2 kmN ↑
Shoreline
40.9 km
3D map

Lake Merwin 3D map

Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 16 × 16 km

Surface
Vertical scale
Topographic map

Lake Merwin terrain and contours

50 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 250 mShowing west → east through the centre

Lake Merwin 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 Merwin weather

Today · Clear · 40 / 53°F (4 / 12°C) · 2% chance of precipitation · Wind 3 mph NW

Lake Merwin forecast for about 182 m.

  • Today40°53°2%3 mph NW
  • Sat44°57°44%0–5 mph SE
  • Sun46°54°70%2–7 mph ESE
  • Mon46°55°59%1–7 mph SE
  • Tue44°53°37%1 mph S
  • Wed45°55°37%2–6 mph E
  • Thu43°57°16%1–13 mph E

Forecast data: NOAA National Weather Service, public domain, model run Oct 23, 23:41 UTC.

Camping & parking

Camping & parking near Lake Merwin

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

All mapped places 3
PlaceDistance
Parking0.5 km W
Parking0.5 km W
Parking0.6 km W
Slope

Slope

Share of the 16 × 16 km view by steepness, from the 10 m model.

Mostly gentle: 57% of the view is under 15°.

Gentle, 0–15°
57.4%
Moderate, 15–30°
33.3%
Steep, 30–45°
8.7%
Cliffs, 45° and over
0.6%
Steeper than 30°
9.3% of the 256 km² view
Relief in view
1,029 m low point 15 m
Land cover

Land cover

ESA WorldCover 10 m classification of the same area.

Trees 83.7%Grassland 10.0%Water 6.0%

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 8.0 km; 461 species recorded in all.

Sightings per species 6
  • Pacific Bleeding Heart15
  • Western sword fern14
  • Salmonberry11
  • Purple foxglove11
  • Western Lily of the Valley11
  • Cascade Oregon-grape11
Where it sits

Where Lake Merwin sits

Region
Washington57United States932North America1,313
Nearby

Nearby places

More 1
Downloads

Lake Merwin 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-merwin" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Lake Merwin"></iframe> <p><a href="https://topolu.com/lake-merwin" 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 2026-08-07)
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)
Wildlife
iNaturalist community observations, counts only
Panorama
Includes Copernicus WorldDEM-90 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
Forecast
Weather forecast from NOAA National Weather Service (public domain)
Sources
Wikidata · GeoNames · Wikipedia