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The Nacatoch Sand in southwestern Arkansas, hereafter referred to as the Nacatoch aquifer, is a source of groundwater for agricultural, domestic, industrial, and public use in Clark, Hempstead, Little River, Miller, and Nevada counties. Water-level altitudes measured in 39 wells completed in the Nacatoch aquifer were used to create a potentiometric-surface map. Groundwater flow direction is towards the south and southeast in Hempstead, Little River, and Nevada Counties in southwestern Arkansas. A possible cone of depression may exist in southern Clark County and likely alters groundwater flow from a regional direction toward the depression. This shapefile depicts the generalized study area of the Southwest Nacatoch...
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The polygon (vector) feature class represents locatable mineral resource assessment tracts (tracts of land) associated with the Department of the Interior (DOI) Sagebrush Focal Areas (SFAs) in Montana, Wyoming and Utah, central Idaho, and the Oregon-Nevada-Idaho border area. The mineral-resources tracts are geographic areas that were assessed by the USGS and were determined to be geologically favorable for a deposit type of interest to a depth of 1 kilometer. Qualitative assessment methods outlined by the Bureau of Land Management (BLM) were used to develop tract boundaries and to assign a level of mineral-resource potential and certainty to each tract. The general process included (1) identifying possible mineral...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Citation,
Downloadable,
Map Service;
Tags: Idaho (ID),
Montana (MT),
Nevada (NV),
Oregon (OR),
USGS Science Data Catalog (SDC), All tags...
Utah (UT),
Western United States,
Wyoming (WY),
clay deposits,
deposit type,
economic geology,
environment,
gem resources,
geoscientificInformation,
locatable mineral tract,
metallic mineral resources,
mineral commodity,
mineral occurrence,
mineral resource assessment,
mineral system,
mineralogy,
mining and quarrying,
native species,
nonmetallic mineral resources,
resource exploration,
sagebrush focal area, Fewer tags
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The Nacatoch Sand in southwestern Arkansas, hereafter referred to as the Nacatoch aquifer, is a source of groundwater for agricultural, domestic, industrial, and public use inClark, Hempstead, Little River, Miller and Nevada counties. Water-level altitudes measured in 39 wells completed in the Nacatoch aquifer were used to create a potentiometric-surface map. Groundwater flow direction is towards the south and southeast in Hempstead, Little River, and Nevada Counties in southwestern Arkansas. A possible cone of depression may exist in southern Clark County and likely alters groundwater flow from a regional direction toward the depression. This shapefile depicts the generalized extent of the Southwest Nacatoch aquifer.
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The point and polygon layers within this geodatabase represent locations of mineral occurrences, mines, mining and mineral districts and sites of active mineral exploration within or near the Department of the Interior (DOI) Sagebrush Focal Areas in Montana, Wyoming and Utah, central Idaho, and the Oregon-Nevada-Idaho border area. The data were compiled by the U.S. Geological Survey (USGS) Mineral Deposit Database project (USMIN) to provide mineral resource information for use in the USGS Sagebrush Mineral Resource Assessment (SaMiRA). This assessment was conducted for the Bureau of Land Management (BLM) and evaluated the mineral resource potential of approximately 10 million acres of Federal lands identified as...
Categories: Data;
Types: ArcGIS REST Map Service,
ArcGIS Service Definition,
Citation,
Downloadable,
Map Service;
Tags: Idaho,
Montana,
Nevada,
Oregon,
USGS Science Data Catalog (SDC), All tags...
Utah,
Wyoming,
economic geology,
economic geology,
environment,
environment,
geoscientificInformation,
geoscientificInformation,
geospatial datasets,
geospatial datasets,
locatable mineral tract,
locatable mineral tract,
mine sites,
mine sites,
mineral commodity,
mineral commodity,
mineral deposit areas,
mineral deposit areas,
mineral deposit type,
mineral deposit type,
mineral deposits,
mineral deposits,
mineral occurrence,
mineral occurrence,
mineral resource assessment,
mineral resource assessment,
mineral resources,
mineral resources,
mineral system,
mineral system,
mining and quarrying,
mining and quarrying,
natural resource exploration,
natural resource exploration,
sagebrush focal area,
sagebrush focal area, Fewer tags
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The Nacatoch Sand in southwestern Arkansas, hereafter referred to as the Nacatoch aquifer, is a source of groundwater for agricultural, domestic, industrial, and public use in Clark, Hempstead, Little River, Miller and Nevada counties. Water-level altitudes measured in 39 wells completed in the Nacatoch aquifer were used to create a potentiometric-surface map. Groundwater flow direction is towards the south and southeast in Hempstead, Little River, and Nevada Counties in southwestern Arkansas. A possible cone of depression may exist in southern Clark County and likely alters groundwater flow from a regional direction toward the depression. This shapefile contains the potentiometric-surface contours of the Southwest...
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