Skip to content

Castle Grayskull

Castle Grayskull, seen from above at true elevation

Castle Grayskull is a waterfall in Idaho, at a modelled elevation of 1,303 m. Hicks Mountain stands 2,491 m to the southwest, 25 miles off. The nearest named place is Arch Table, a peak 4.2 miles away. 54 named places lie within 25 miles, 37 of them named summits.

A massive rockslide on river right formed this rapid in the spring of 2009 creating a large pool upstream that consumed what used to be Sevy Falls. Castle Grayskull is also known as Tonsmeire Falls or Barker Falls.

How to reach it

Coordinates42.22148, -115.52800

54 named places within 25 miles

Peaks: 37
Springs: 11
  • Willow Spring: 13.3 mi
  • Dead Horse Spring: 13.5 mi
  • Last Chance Spring: 18.5 mi
  • Mustang Spring: 21.1 mi
  • Robinson Hole: 22.1 mi
Cliffs: 3
Waterfalls: 1
  • Jarbidge Falls: 6.8 mi
Beaches: 1
Ghost towns: 1

Summits around it

The highest named summits within 25 miles of Castle Grayskull. Elevation from each summit’s own record; bearing measured between the two coordinates.

SummitBearingElevationDistance
Hicks MountainSW2,491 m24.8 mi
Alder MountainSW2,336 m23.3 mi
Bearpaw MountainS2,268 m18.7 mi
SugarloafSW2,140 m24.0 mi
Mustang ButteSSW2,082 m21.8 mi
Rough MountainWSW2,080 m24.2 mi
Hot Springs ButteSSW2,038 m24.8 mi
Scott TableSSW1,851 m18.3 mi

When to go

Light through the year

DateSunriseGolden hourSunset
March equinox07:4619:1819:55
June solstice06:0720:4021:23
September equinox07:3019:0419:41
December solstice08:0816:2817:14

Local time (America/Boise).

Climate normals

Months averaging 50–80 °F: Jun–Sep.

JanFebMarAprMayJunJulAugSepOctNovDec
Avg °F293137425057666557463528
Precip in1.10.91.22.22.31.20.70.50.91.01.31.3

1991–2020 U.S. Climate Normals, NOAA NCEI — Murphy (desert) HOT Springs, 16 mi away.

Where this comes from

Location and category confirmed against OpenStreetMap.

OpenStreetMap

OpenStreetMap element node/4673060905

More waterfalls in Idaho

Drive to it

Byway plans a real route around stops like this one.

Private beta · Free to join

Take the scenic way to Castle Grayskull.

Byway plans around your taste, mapped places, real weather and opening hours — then opens every leg in Google Maps with one tap.

Private beta · Free to join · No card · Invite when a spot opens