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 *	MSL/Meghan Burns
Cadastral *	MSL/Keith Blount
Climate	University of Montana/Mike Sweet
Elevation *	vacant
Geographic Names	MSL/Diane Papineau
Geology	Bureau of Mines & Geology/Paul Thale
Hydrography *	MSL/Troy Blandford
Hydrologic Units	NRCS/Catherine Maynard
Land Use/Land Cover	MT NHP/Linda Vance
Mapping Control *	MSL/Bob Holliday
Orthoimagery *	MSL/Evan Hammer and Erin Fashoway
Soils	NRCS/Catherine Maynard
Structures and Addresses*	MSL/Michael Fashoway
Transportation *	MSL/Duane Lund
Wetlands	MT NHP/Jamul Hahn and DEQ/Steve Carpenedo

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