1. Altitude of the top of the Deadwood Formation in the Black Hills area, South Dakota Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, Colo. : For sale by USGS Branch of Information Services Resource Type: Map Access & Availability: Loading
2. Altitude of the top of the Inyan Kara Group in the Black Hills area, South Dakota Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, Colo. : For sale by USGS Branch of Information Services Resource Type: Map Access & Availability: Loading
3. Altitude of the top of the Madison Limestone in the Black Hills area, South Dakota Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, Colo. : For sale by USGS Branch of Information Services Resource Type: Map Access & Availability: Loading
4. Altitude of the top of the Minnekahta Limestone in the Black Hills area, South Dakota Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, Colo. : For sale by USGS Branch of Information Services Resource Type: Map Access & Availability: Loading
5. Altitude of the top of the Minnelusa Formation in the Black Hills area, South Dakota Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, Colo. : For sale by USGS Branch of Information Services Resource Type: Map Access & Availability: Loading
6. Geohydrology of the shallow aquifers in the Boulder-Longmont area, Colorado Author/Creator: Geological Survey (U.S.) Publication/Creation: Reston, Va. : The Survey, 2000 Resource Type: Map Access & Availability: Loading
7. Geohydrology of the shallow aquifers in the Fort Lupton-Gilcrest area, Colorado Author/Creator: Geological Survey (U.S.) Publication/Creation: [Denver, Colo.] : [For sale by Information Services]. Resource Type: Map Access & Availability: Loading
8. Hydrogeology and hydrogeologic terranes of the Blue Ridge and Piedmont physiographic provinces in the eastern United States Author/Creator: Geological Survey (U.S.) Publication/Creation: [Denver, CO] : [For sale by Information Services]. Resource Type: Map Access & Availability: Loading
9. Potentiometric surface of the Deadwood Aquifer in the Black Hills area, South Dakota Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : Information Services [distributor] Resource Type: Map Access & Availability: Loading
10. Potentiometric surface of the Inyan Kara Aquifer in the Black Hills area, South Dakota Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : Information Services [distributor] Resource Type: Map Access & Availability: Loading