Our guidebooks go 3DSee it in the app →

Contribute to OneTopo

Our guidebooks are made with local route developers, and they get better thanks to the climbers who use them. A drone flight, a grade to fix, a freshly bolted route, a good photo: every contribution benefits the whole community.

Send a contribution

How you can help

Fly a drone over a crag

Our 3D models are rebuilt from drone photos. If you fly, a flight over a crag that is already online lets us add 3D to its guidebook — free for every climber.

  • Photos rather than video, with plenty of overlap between shots
  • Several passes facing the wall, at different distances and heights
  • Following drone regulations and bird nesting periods

Report an error

A grade that feels off, a misplaced route, a replaced anchor, a parking spot or approach that has changed: tell us and we'll fix it.

  • Mention the sector and the route name
  • An annotated photo beats a long text

Report a new route

A line has just been bolted or rebolted? Send us the details: we add it to the guidebook after checking with the crag's route developers.

  • Name, grade, first ascensionist and date
  • Start and line of the route (an annotated photo is ideal)

Share photos

Sharp photos of the sectors, taken head-on in good weather, make guidebooks easier to read — and help with 3D too.

  • Taken head-on, with the whole wall in frame
  • Shared through a link (Google Drive, WeTransfer, Google Photos…)

Do you bolt or manage a crag?

Club, bolting collective, local committee or site manager: we build the digital and 3D guidebook of your crag with you. You remain the content owners and decide what gets published.

Crags to fly first

These guidebooks are online but not yet in 3D. Click a crag to offer a flight.

Our commitment

  • Route developers and local organisations remain the content owners and decide what is shared.
  • No guidebook is published without their explicit agreement.
  • Every contribution is reviewed by the team and, when needed, validated with route developers before being added.

Send a contribution

We read everything, and we'll reply by email.

Type of contribution

Only used to reply to you.