Data and Documentation

MSDI Montana Cadastral Data
The Cadastral Parcel data is provided for each Montana county (56) in two different data formats: a personal geodatabase (version 9.3 and 10) and shape file. Metadata is provided for the data in XML format. The Montana Department of Revenue’s (DOR) Orion CAMA data is provided for each county in a Microsoft 2008 SQL Express Database.

Cadastral Database Documentation
The Cadastral Parcel Database Documentation provides a schema diagram for the DOR’s Orion CAMA database and a Data Dictionary of CAMA attributes found in the Cadastral records.


Cadastral Web Application
The Montana Cadastral online mapping application is maintain by the Montana State Library Geographic Information Services. This application is intended to provide the public with basic functionality to research information on public and private property. It is not intended as an end-all application that serves every specialized need.

Cadastral data is the information about rights and interest in land. The data may also be known as real estate data, parcel information, or tax parcel information. The Montana Cadastral Framework data consists of tax parcels defined by the Department of Revenue and built primarily upon the Bureau of Land Management’s Geographic Coordinate Database (GCDB) – a computed spatial representation of the Public Land Survey System (PLSS) created from survey records and geodetic control information. The Framework may also be vertically integrated with other GCDB based sources of data such as Stewardship (Public Lands, etc.), county and state boundaries, and state trust lands.