CLOG Clean Climbing Gear

Object/Artifact

-

Yosemite Climbing Museum

Piece of Goldline rope with two pre-slung machine nuts and a manufactured one by Troll. The photo inside shows a sign that restricted climbing because of piton damage. The two areas that were closed were at Swan Slab and Serenity Crack. Both areas opened back up once clean climbing was popular.

Piece of Goldline rope with two pre-slung machine nuts and a manufactured one by Troll. The photo inside shows a sign that restricted climbing because of piton damage. The two areas that were closed were at Swan Slab and Serenity Crack. Both areas opened back up once clean climbing was popular.

Name/Title

CLOG Clean Climbing Gear

Entry/Object ID

2026.1.57

Description

A piece of Goldline Rope with three nuts. Three nuts are attached, one manufactured by CLOG.

Use

Instead of pitons, nuts would fit in a crack to attach yourself to the rock.

Context

In the UK, climbers did not use or believe in using pitons. They manufactured nuts instead that were placed into cracks at different angles and widths. This Goldline Rope includes one nut manufactured by CLOG, a Welsh company that was one of the first to make clean climbing gear.

Collection

Yosemite Climbing Museum Permanent Collection

Category

Nuts/Chocks, Climbing Hardware

Acquisition

Accession

2026.1

Notes

Unknown acquisition.

Made/Created

Artist

CLOG

Inscription/Signature/Marks

Type

Makers Mark

Location

On the bigger square nut

Transcription

CLOG and the number 6

Dimensions

Dimension Description

Diameter of the rope

Dimension Description

CLOG nut

Width

1 in

Length

1 in

Dimension Notes

Width tapers to 3/4 inch

Dimension Description

Rusty nut

Diameter

1-1/4 in

Dimension Description

smaller nut

Diameter

7/8 in

Material

steel, Aluminum, Nylon

Location

Location

Display Case

Exhibit Case 10

Date

January 28, 2026

Web Links and URLs

https://vimeo.com/1165188828/722837f20d

Provenance

Provenance Detail

Unknown

Notes

Unknown donation to Ken Yager

General Notes

Note Type

Cataloging Note

Note

Caption in the museum is:" Piece of Goldline rope with two pre-slung machine nuts and a manufactured one by Troll. The photo inside shows a sign that restricted climbing because of piton damage. The two areas that were closed were at Swan Slab and Serenity Crack. Both areas opened back up once clean climbing was popular."

Create Date

January 29, 2026

Update Date

February 15, 2026