Waterfall

Thunder Falls

Colorado

About

Thunder Falls is a waterfall in Boulder County, Colorado, set at about 10,859 feet inside Rocky Mountain National Park and the Rocky Mountain National Park Wilderness. The National Park Service manages the land, and the nearest town is Allenspark, about 6 miles away. Summer is the most comfortable time to visit. Typical averages from a nearby weather station show July highs around 68°F with lows near 43°F, and September highs around 59°F. That station sits roughly 1,000 feet lower than the falls, so temperatures at the waterfall run cooler. The Thunder Lake Trail and the Box-Eagle Lakes Route both start about half a mile away. Climbers can head to Chiefshead South Face, about a mile off, and Meeker Park Overflow Campground offers camping about 6 miles away.

Waterfall Facts

Elevation

10,859 ft

Land manager

National Park Service

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

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Location

Thunder Falls

Colorado

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–Aug. The mildest months here, with typical highs of 62–68°F and lows of 36–43°F.

Typical monthly averages (not a forecast) from the Boulder 14 W, CO weather station, 14 mi away. High / low in °F.

  1. Jan29° high12° low
  2. Feb28° high11° low
  3. Mar36° high17° low
  4. Apr40° high22° low
  5. May50° high29° low
  6. Jun62° high36° low
  7. Jul68° high43° low
  8. Aug66° high41° low
  9. Sep59° high34° low
  10. Oct47° high26° low
  11. Nov35° high19° low
  12. Dec28° high12° low

The station sits about 1,000 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
Allenspark, Colorado · 6.4 mi
Managed by
National Park Service

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

Nearby

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

    Thunder Falls — Waterfall in Colorado | Roamze