How can we correct trails on Mapbuilder Topo

Dan's Avatar


27 Sep, 2019 02:35 AM

I recently used Caltopo to scout some trails in your backyard, north of Donner Pass. I found that at least one trail on the Mapbuilder Topo doesn't actually exist as a trail, and it's not even a marked or heavily-used cross-country route. Is there any way users can suggest corrections to the trails on Mapbuilder Topo? Thanks.

  1. Support Staff 1 Posted by rmarcucci on 27 Sep, 2019 03:01 PM

    rmarcucci's Avatar


    MapBuilder Topo draws from open street map data. We update this data set approximately quarterly. OSM is a crowdsourced compendium of mapping information and you can edit the map itself at You'll see the edits in the CalTopo layers within 3-4 months typically.

    Thank you for helping make CalTopo more accurate for everyone,

  2. rmarcucci closed this discussion on 27 Sep, 2019 03:01 PM.

Comments are currently closed for this discussion. You can start a new one.

Keyboard shortcuts


? Show this help
ESC Blurs the current field

Comment Form

r Focus the comment reply box
^ + ↩ Submit the comment

You can use Command ⌘ instead of Control ^ on Mac