This layer was derived from the Public Land layer in the Cadastral Aggregated Public Lands Data from the Montana Base Map Service Center for the Lake County portion of the Swan River watershed. The Missoula County portion was provided by Nate Rogers 10/26/2011, at Rural Initiatives at Missoula County. Nate mentioned in his email of transmittal that any parcel under 40 acres was not identified specifically in terms of ownership with corresponding color codes we use here at the county. He also attached a shapefile of the legacy project lands in the area.
THe Missoula County portion of the ownership map from Rural Initiatives included an XML metadata document available at http://www.mapcoop.com/storage/General_Ownership.shp.xml
The base map service center metadata is available at http://giscoordination.mt.gov/cadastral/MTPublicLands040611.htm