Dolt Stopper

Object/Artifact

-

Yosemite Climbing Museum

The clean climbing movement of the 1970’s spurred many hammer-less climbing gear options. Some worked pretty well in Yosemite cracks, others not so much, potentially putting the climber at risk. The generic term for hammer-less gear is Nuts.

The clean climbing movement of the 1970’s spurred many hammer-less climbing gear options. Some worked pretty well in Yosemite cracks, others not so much, potentially putting the climber at risk. The generic term for hammer-less gear is Nuts.

Name/Title

Dolt Stopper

Entry/Object ID

2026.1.100

Description

A wedge-shaped stopper manufactured by Dolt

Use

Designed to fit into narrow, tapered rock cracks, locking securely when weighted

Context

An early piece of "clean climbing" equipment manufactured by Dolt. Royal Robbins took an influential trip to Great Britain in 1966, which introduced the concept of climbing without using pitons and damaging the rock. He brought back equipment from his trip and manufacturers in the US quickly followed suit.

Collection

Yosemite Climbing Museum Permanent Collection

Category

Climbing Hardware, Nuts/Chocks

Acquisition

Accession

2026.1

Notes

Unknown Acquistion

Made/Created

Manufacturer

Dolt

Inscription/Signature/Marks

Type

Makers Mark

Location

top of nut

Transcription

DOLT

Type

Label

Location

side of nut

Transcription

MADE IN U.S.A

Dimensions

Width

1 in

Length

1-1/4 in

Material

steel

Location

Location

Display Case

Exhibit Case 11

Date

February 3, 2026

Web Links and URLs

https://vimeo.com/1171413648/919a36c001

Provenance

Provenance Detail

Unknown

General Notes

Note Type

Cataloging Note

Note

Caption in the museum is: "The clean climbing movement of the 1970’s spurred many hammer-less climbing gear options. Some worked pretty well in Yosemite cracks, others not so much, potentially putting the climber at risk. The generic term for hammer-less gear is Nuts."

Create Date

February 3, 2026

Update Date

March 10, 2026