The Montana Spatial Data Infrastructure is made up of fifteen “framework” geographic databases vital for making maps of Montana and understanding its geography. Seven of the databases are federally defined framework datasets and the other eight were selected as additional framework layers by the Montana Land Information Advisory Council (MLIAC).

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Data Access	Steward	Lead
Administrative Boundaries *	Montana State Library	Meghan Burns
Cadastral *	Montana State Library	Michael Fashoway
Climate	University of Montana	Mike Sweet
Elevation *	Montana State Library	Troy Blandford
Geographic Names	Montana State Library	Erin Fashoway
Geology	Bureau of Mines & Geology	Paul Thale
Hydrography *	Montana State Library	Troy Blandford
Hydrologic Units	Natural Resources Conservation Service	Catherine Maynard
Land Cover	Montana Natural Heritage Program	Claudine Tobalske and Linda Vance
Mapping Control *	Montana State Library	Bob Holliday
Imagery *	Montana State Library	Erin Fashoway
Soils	Natural Resources Conservation Service	Catherine Maynard
Structures & Addresses*	Montana State Library	Michael Fashoway
Transportation *	Montana State Library	Michael Fashoway
Wetlands & Riparian	Montana Natural Heritage Program and Dept. of Environmental Quality	Jamul Hahn and Steve Carpenedo

 * Layers marked with asterisks are defined as Framework themes in the National Spatial Data Infrastructure by the Federal Geographic Data Committee.