BOLTA Terms of Use and Information Sources

Gym information

We gather prices, hours, facilities, and other information from each gym's official website.

Walk times from stations are estimates based on straight-line distance (we show the official time when available).

Land and borders use Natural Earth; stations and lines are adapted from the National Land Numerical Information (railway data, MLIT).

Map & data sources

Prefecture shapes, routes, and stations: Created by processing National Land Numerical Information (MLIT).

The layout of the Japan map in the Prefecture Score stamp book: based on deformed-japan-map (stgw14, https://github.com/stgw14/deformed-japan-map).

For gym owners & managers

You can request corrections or removal of listed information at any time. On My Page, go to "Contact", select either "I'm with the gym" or "Please remove this listing", and send it. We'll review it and fix or delete it right away.

Photos, 3D, and problems are posted only with the gym's permission.

Info sent to us

We may review the information you send and reflect it on the site. We won't post content that harms people or groups, or that is false.

Notice

Do not rely solely on information from this site when climbing. For outdoor crags, always check local rules and access regulations.