Found 2509 datasets matching "base map".
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This imagery layer shows national riparian areas for the conterminous United States. Riparian areas are an important natural resource with high biological diversity. These ecosystems contain...
Search relevance: 106.96 | Views last month: 0 | Published on: 2026-01-27 -
The U.S. Geological Survey (USGS), in cooperation with the Lewis and Clark Natural Resources District (NRD), Lower Elkhorn NRD, Lower Loup NRD, Lower Platte North NRD, Lower Niobrara NRD, Middle...
Search relevance: 89.57 | Views last month: 4 | Published on: 2026-03-07 -
The base flow recession time constant (tau) is a hydrologic index that characterizes the ability of a ground-water system to supply flow to a stream draining from that system. Tau and other...
Search relevance: 87.79 | Views last month: 0 | Published on: 2026-03-03 -
This data set consists of digital base of aquifer elevation contours for the High Plains aquifer in the central United States. The High Plains aquifer extends from south of 32 degrees to almost...
Search relevance: 84.44 | Views last month: 1 | Published on: 2026-03-18 -
This data set consists of a collection of over 80 map layers displayed on WalkNYC totems installed throughout New York City.
Search relevance: 82.27 | Views last month: 6 | Published on: 2026-03-21 -
This preliminary geologic map presents mapping of the Leuhman Ridge area of Edwards Air Force Base, California, conducted between April 2020 and June 2021. The report focuses on surficial...
Search relevance: 73.94 | Views last month: 2 | Published on: 2026-03-03 -
The U.S. Geological Survey (USGS), in cooperation with the Lewis and Clark Natural Resources District (NRD), Lower Elkhorn NRD, Lower Loup NRD, Lower Platte North NRD, Lower Niobrara NRD, Middle...
Search relevance: 59.54 | Views last month: 0 | Published on: 2026-03-07 -
Location and attributes for Base Flood Elevations lines shown on FIRM. The elevation of surface water resulting from a flood that has a 1% chance of equaling or exceeding that level in any given...
Search relevance: 58.83 | Views last month: 5 | Published on: 2026-01-27 -
In 2006, a cooperative study was established to compile reliable data describing groundwater and surface-water interactions in the Elkhorn and Loup River Basins. The purpose of the study was to...
Search relevance: 58.45 | Views last month: 1 | Published on: 2026-03-18 -
This is a dataset download, not a document. The Open button will start the download.This data layer is an element of the Oregon GIS Framework. This feature dataset contains the following feature...
Search relevance: 56.72 | Views last month: 4 | Published on: 2026-01-27 -
This digital spatial data set consists of the aquifer base elevation contours (50-foot contour interval) for part of the High Plains aquifer in the central United States. This subset of the High...
Search relevance: 52.07 | Views last month: 1 | Published on: 2026-04-03 -
The files linked to this reference are the geospatial data created as part of the completion of the baseline vegetation inventory project for the NPS park unit. Current format is ArcGIS file...
Search relevance: 47.00 | Views last month: 0 | Published on: 2026-03-04 -
The files linked to this reference are the geospatial data created as part of the completion of the baseline vegetation inventory project for the NPS park unit. Current format is ArcGIS file...
Search relevance: 46.11 | Views last month: 0 | Published on: 2026-03-04 -
The U.S. Geological Survey (USGS), in cooperation with the Lewis and Clark Natural Resources District (NRD), Lower Elkhorn NRD, Lower Loup NRD, Lower Platte North NRD, Lower Niobrara NRD, Middle...
Search relevance: 42.71 | Views last month: 0 | Published on: 2026-03-18 -
In 2006, a cooperative study was established to compile reliable data describing groundwater and surface-water interactions in the Elkhorn and Loup River Basins. The purpose of the study was to...
Search relevance: 41.69 | Views last month: 1 | Published on: 2026-03-07 -
Seismic Line Location Map Hot Pot Project, Humboldt County, Nevada 2010. Detailed map (pdf) showing topographic base map, Township and Range layer, Oski BLM and private leases at time of survey,...
Search relevance: 40.57 | Views last month: 0 | Published on: 2026-03-23 -
The files linked to this reference are the geospatial data created as part of the completion of the baseline vegetation inventory project for the NPS park unit. Current format is ArcGIS file...
Search relevance: 40.35 | Views last month: 1 | Published on: 2026-03-04 -
Map file package containing shaded relief base with Hot Pot project area, major roads, railroads, and rivers. The inset map shows regional Paleozoic structural elements.
Search relevance: 40.04 | Views last month: 0 | Published on: 2026-03-23 -
This archive contains an ArcGIS map package file that includes a relief base with the northern Nevada Hot Pot project area, generalized geology, selected mines, and major topographic features. ...
Search relevance: 39.01 | Views last month: 0 | Published on: 2026-03-23 -
The files linked to this reference are the geospatial data created as part of the completion of the baseline vegetation inventory project for the NPS park unit. Current format is ArcGIS file...
Search relevance: 38.93 | Views last month: 1 | Published on: 2026-03-04
