Property & Map Search | San Juan County Colorado

Searchable Property Database and Maps - hosted by GSA with access to GIS mapping.
Note this is a new system as of December 5, 2024 and is updated regularly.

The majority of parcels in San Juan County are non-producing patented mining claims. For general information on mining claims, including unpatented claims, see the BLM Brochure on Mining Claims and Sites on Federal Lands (pdf).
Parcel Shapefile (zip file) updated March 2025.
One record per tax account
ArcGIS online - For downloadable files. Requires an ESRI Account (available free).
Other Shapefiles, KMZ files, and other GIS files can be requested emailing assessor@sanjuancolorado.us
Parcels impacted by Environmental Remediation County Ordinance 2020-1
Areas in Green have been remediated at least to some extent
Areas in Orange were yet to be remediated at the time of the ordinance
See full text of County Ordinance 2020-1 for details on land use impact
Static Maps (PDF format)
- Commissioner Districts Map
- Topo Sections Map
- Township Range Map
- San Juan County Road Map
- Town of Silverton Parcel/Block Map
- 1930s San Juan Triangle Map - East (includes Silverton; shows mining claims)
- 1930s San Juan Triangle Map - West (shows mining claims)