Montana Historical Society

Big Sky. Big Land. Big History.

The Montana Cultural Resource Database contains cultural resource information on over 60,000 known historic and archaeological sites, 38,000 previously conducted cultural resource inventories, National Register site status, and cultural resource management project information. The database is updated and maintained by the Montana State Historic Preservation Office in Helena. The SHPO requires Smithsonian numbers in order to process all consultation, including resolving APE, Eligibility, Effect etc., as it is the sole means of tracking properties.  To obtain a Smithsonian number see below.

To view a public version of our Cultural Resource Database please click here. This will allow you to see if sites are present/absent in a particular location.  For more detailed information please fill out our file search request form.

Smithsonian Number Requests:

To request a Smithsonian number please see our Instructions.  Site forms must be submitted electronically as a PDF, or Word Document.  Instructions for site form submittal. Please send the final form and GIS shapefile to to receive your number.  Contact SHPO, or click here for ePass instructions.

File Search Requests:

To request a file search please fill out the File Search Request form and email it in to  The results of the file search will be sent within a few days of receiving the request. File Search Request Form
File Search Eligibility Definitions

Digital Data Use Agreement:

Please complete this Digital Data and Information Use Agreement for each individual within an organization, institution, or agency that is requesting digital data from the Montana SHPO. Site, Inventory, and GIS files will not be given out until this has been received.
Digital Data Use Agreement

Data Request:

To request an copy of a previous cultural resource inventory (CRABS report), or site form (CRIS) you must first read and fill out our Digital Data Use Agreement.  To request data please fill out our Data Request form and email it in to Damon Murdo  
**Please note that this form is to be used only after a File Search Request has been performed.**
Data Request

If you have not performed a file search, or if you need additional data, GIS, extra inventory or site forms, please fill out our Additional Data Request form.
Additional Data Request

Montana SHPO Fee Schedule

SHPO Story Map Gallery