Also on the map ofAppalachian Mountains

Mountain · Taconic Mountains · Massachusetts

Mount Greylock

1,064 m3,491 ft

Prominence: 756 m2,479 ft
Isolation: 38 km
Tonight: 29°FPartly cloudy · Wind 3 mph N

Mount Greylock is a 1,064 m (3,491 ft) mountain in the Taconic Mountains, Massachusetts, United States.

All facts

Elevation: 1,064 m · 3,491 ft
Nearest higher peak: Glastenbury Mountain (1,141 m)
Range: Taconic Mountains
Region: Massachusetts, United States
Protected area: Mount Greylock State Reservation
Spanish name: Monte Greylock
Coordinates: 42.6373° N, 73.1660° W

Open the 3D view

Camping & parking

Camping & parking near Mount Greylock

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

Nearest parking
0.1 km NNW
+2 more within 0.2 km
Directions Map
Nearest trailhead
Haley Farm Trailhead
3.8 km WNW
Directions Map
Nearest campsite
Balsam Group Site
1.9 km WSW · +2 more within 2.4 km
Directions Map

All mapped places 7

Place	Distance
Parking	0.1 km NNW
Parking	0.1 km WSW
Parking	0.2 km WSW
Balsam Group SiteCampsite	1.9 km WSW
Spruce Group SiteCampsite	1.9 km WSW
Stoney Ledge Group SiteCampsite	2.4 km WNW
Haley Farm TrailheadTrailhead	3.8 km WNW

3D map

Mount Greylock 3D map

Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 7 × 7 km

Surface

Vertical scale

Topographic map

Mount Greylock 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 summit

Mount Greylock elevation profile

West → east through the summit

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

Weather

Mount Greylock weather

Tonight · Partly cloudy · 29°F (-2°C) · Wind 3 mph N

Mount Greylock forecast for the summit, about 769 m.

Tonight29°–3 mph N
Sat31°53°–5 mph NW
Sun36°57°–3 mph W
Mon36°58°–5–8 mph W
Tue29°49°–7 mph NW
Wed38°51°4%3 mph SE
Thu44°57°16%5–9 mph S

Forecast data: NOAA National Weather Service, public domain, model run Oct 24, 00:36 UTC.

Slope

Share of the 7 × 7 km view by steepness, from the 10 m model.

Mixed terrain: gentle slopes, steep faces and everything between.

Gentle, 0–15°

46.8%

Moderate, 15–30°

39.3%

Steep, 30–45°

13.5%

Cliffs, 45° and over

0.4%

Steeper than 30°: 13.9% of the 49 km² view
Relief in view: 820 m low point 245 m

Land cover

ESA WorldCover 10 m classification of the same area.

Trees 96.0%Grassland 2.7%Built-up 0.8%

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

Nearby summits

Named peaks within 3.5 km, measured from the Mount Greylock summit.

Summit list 6

1Ragged Mountain771 m 1.7 km ENE
2Mount Fitch945 m 2.1 km NNE
3Stony Ledge783 m 2.4 km WNW
4Saddle Ball Mountain985 m 3.0 km SW
5Mount Prospect816 m 3.2 km NNW
6Mount Williams901 m 3.5 km N

Wildlife

Wildlife seen nearby

Sightings of the most-seen species on iNaturalist (research grade) within 3.5 km; 928 species recorded in all.

Sightings per species 6

Bluebead lily209
Hobblebush177
Balsam fir97
Red trillium94
Carolina Springbeauty72
Mountain Maple68

Where it sits

Where Mount Greylock sits

Nearby

Nearby places

More 1

Ballston Lake75 m66 km WNW

Mount Greylock 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

JPGMount Greylock satellite image (JPEG)Sentinel-2 true-colour image of the same area, taken 2026-08-04.

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/mount-greylock" width="100%" height="480" style="border:0" loading="lazy" allowfullscreen title="3D terrain of Mount Greylock"></iframe>
<p><a href="https://topolu.com/mount-greylock" rel="nofollow">Topolu</a></p>

Free to use with credit: see the data sources

Accuracy

How accurate is this?

within 10 m This 3D map reads 1,064 m at the summit; the official height is 1,064 m.

A 10 m terrain model averages each cell, so a few metres either way is normal.

Source	Summit	Difference
Official height (Wikidata)	1,064 m	—
USGS 3DEP lidar	1,065 m	+1 m
USGS 3DEP 10 m (used on this page)	1,064 m	0 m
Copernicus GLO-30	1,064 m	0 m
Copernicus GLO-90	1,063 m	-1 m

Data sources

Terrain: U.S. Geological Survey, 3D Elevation Program (public domain)
Imagery: Contains modified Copernicus Sentinel data 2026 (scene 2026-08-04)
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
Accuracy comparison: Includes Copernicus WorldDEM-30 © 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.
Accuracy comparison: 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 · OpenStreetMap · GeoNames · Wikipedia

Mount Greylock

Nearest parking

Nearest trailhead

Nearest campsite

West → east through the summit

Data sources