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Summit

Purple Mountain

Wyoming

About

Purple Mountain is a summit of 8,512 feet in Yellowstone National Park in Wyoming, managed by the National Park Service. The nearest town is West Yellowstone, Montana, about 12 miles away. Summer is the most comfortable time to go. Typical averages from the nearby Old Faithful weather station show July highs around 76°F with lows near 39°F, and the summit sits higher than that station, so expect it to run a little cooler. The Purple Mountain Trail and Madison Junction both start about a mile away, and the Harlequin Lake Trail is about 1.5 miles off. For a swim, Firehole Canyon Swimming Area is roughly 3 miles away.

Summit Facts

Summit elevation

8,512 ft

Land manager

National Park Service

Elevation from USGS 3D Elevation Program terrain data (about 10 m resolution).

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Location

Purple Mountain

Wyoming

Name and location: U.S. Geological Survey, Geographic Names Information System (GNIS). Elevation: USGS 3D Elevation Program. View the GNIS record.

Facts about this place

When to go

Best time to go: Jun–Sep. The mildest months here, with typical highs of 65–76°F and lows of 30–39°F.

Typical monthly averages (not a forecast) from the Old Faithful, WY weather station, 14 mi away. High / low in °F.

  1. Jan28° high1° low
  2. Feb31° high2° low
  3. Mar39° high10° low
  4. Apr46° high19° low
  5. May55° high29° low
  6. Jun65° high35° low
  7. Jul76° high39° low
  8. Aug75° high37° low
  9. Sep65° high30° low
  10. Oct50° high22° low
  11. Nov35° high10° low
  12. Dec27° high1° low

The station sits about 1,200 ft lower than this spot, so expect it to run cooler up here.

Source: NOAA NCEI U.S. Climate Normals 1991–2020

Where it is

Nearest town
West Yellowstone, Montana · 12 mi
Managed by
National Park Service

Source: NPS Land Resources boundaries; USGS PAD-US 4.1; USGS GNIS populated places

Conditions

Active alerts for Yellowstone National Park as of Oct 9, 2026:

Source: NPS Alerts API

Nearby

Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)

    Purple Mountain — Summit in Wyoming | Roamze