Ancestry.com - Search Tax, Criminal, Land & Wills

Ancestry.com has searchable indexes; database results and some digitized images are available with a fee-based subscription.

BLM - Montana Electronic Reading Room

United States Bureau of Land Management.

Montana Cadastral Mapping Program

The Project is public-private sector partnership to create, maintain, and disseminate a digital GIS land ownership (cadastral) map database of the entire state. Parcels and real property are mapped and maintained by state and county cartographers. Interactive maps and descriptive data are available on this site for each parcel. Descriptive data are derived from the Montana Department of Revenue CAMA (Computer Assisted Mass Appraisal) database.

Montana Land and Property | Learn | FamilySearch.org

Montana Public and Private Land Ownership Maps - Resource Information System

Access to two pre-built map series using the USGS 1:100,000 scale topographic map boundaries as the indexing system.

Montana Public Land Survey Townships

Native American Land Patents - Montana

A listing by state and Tribe of land patents.