Castle Grayskull

Castle Grayskull · PinnedAtlas

Overview

What to expect

A cascade where water drops over rock. The payoff is the falls themselves — mist, sound, and often a pool below. Rocks near the water stay slick, and the best viewpoints can require care to reach. Plan for a genuine outdoor outing to reach it.

Background

About this spot

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.

Description from OpenStreetMap contributors

Location

Where it is

42.22148, -115.52800

Field notes

Plan your visit

Best time to go

Late spring (peak flow)

Flow is strongest during and just after snowmelt or the rainy season. By late summer many falls slow to a trickle. After heavy rain they roar — but access can be dangerous.

Effort

Moderate hike

Expect a real walk: roughly 1–3 miles round trip with some elevation gain or uneven footing. Wear proper shoes and give yourself time.

What to bring

Plenty of water
Sturdy, closed-toe footwear
Offline map or downloaded directions (signal is often weak)
Tell someone your plan and expected return time
Shoes with grip — wet rock is slippery
Dry bag for electronics
Swimwear if you plan to get in

Good to know

Access status is unclear. Verify you have a legal right to be here before you go.
Community-sourced from open map data — confirm the specifics before relying on them.
Conditions change fast in the outdoors. Check the latest reports below before heading out.

General guidance based on feature type and difficulty — always verify current conditions.

Stay safe

Safety

Natural areas are hazardous and conditions change fast. Verify access and current conditions before you go, respect private property and closures, and leave no trace. You are responsible for your own safety.

Rock near falls is slick with spray and algae — a single slip can be fatal.
Currents above and below a falls are stronger than they look; never wade near the lip.
Cold water can cause gasp reflex and shock even on hot days.

Rocks near falls are slick; currents and submerged hazards make swimming dangerous. Stay on trail and keep back from edges.

Access unclear — verify before visiting

Explore

Nearby spots

Source: OpenStreetMap contributorsUpdated 8h ago

Community

Latest conditions

No reports yet — be the first to share current conditions.