Search datasets
-
The Geographic Names Information System (GNIS) is the Federal standard for geographic nomenclature. The U.S. Geological Survey developed the GNIS for the U.S. Board on Geographic Names, a Federal...
Search relevance: 1.00 | Views last month: 93 | Catalog Last Checked: September 10, 2026 at 09:50 PM -
This dataset shows the temporal frequency and spatial extent of cyanobacteria cells in large, freshwater lakes and reservoirs across the continental United States derived from 300x300 meter MEdium...
Search relevance: 1.00 | Views last month: 89 | Catalog Last Checked: August 03, 2026 at 04:16 AM -
When a species is proposed for listing as endangered or threatened under the Endangered Species Act, the U.S. Fish and Wildlife Service must consider whether there are areas of habitat believed to...
Search relevance: 1.00 | Views last month: 58 | Catalog Last Checked: September 10, 2026 at 06:04 PM -
The Walkability Index dataset characterizes every Census 2019 block group in the U.S. based on its relative walkability. Walkability depends upon characteristics of the built environment that...
Search relevance: 1.00 | Views last month: 58 | Catalog Last Checked: August 03, 2026 at 04:49 AM -
Summaries of Consumption-Based Emission Inventory (CBEI) results for states outside the Northeast, in other words states not covered in EPA's report on CBEIs the Northeastern States...
Search relevance: 1.00 | Views last month: 46 | Catalog Last Checked: September 10, 2026 at 07:01 PM -
This web feature service contains location and facility identification information from EPA's Facility Registry System (FRS) for the subset of facilities that link to the Toxic Substances Control...
Search relevance: 1.00 | Views last month: 45 | Catalog Last Checked: September 18, 2026 at 07:44 PM -
This dataset, termed "GAGES II", an acronym for Geospatial Attributes of Gages for Evaluating Streamflow, version II, provides geospatial data and classifications for 9,322 stream gages...
Search relevance: 1.00 | Views last month: 41 | Catalog Last Checked: September 10, 2026 at 08:16 PM -
The units of geography used for the 2010 Census maps displayed here are the Census tracts. Census tracts generally have a population size between 1,200 and 8,000 people, with an optimum size of...
Search relevance: 1.00 | Views last month: 37 | Catalog Last Checked: September 10, 2026 at 06:49 PM -
This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's...
Search relevance: 1.00 | Views last month: 34 | Catalog Last Checked: August 02, 2026 at 06:37 AM -
Updated daily postings on Montgomery County’s open data website, dataMontgomery, provide the public with direct access to crime statistic databases - including raw data and search functions – of...
Search relevance: 1.00 | Views last month: 33 | Catalog Last Checked: September 16, 2026 at 07:03 PM -
Metro Lines (regional). The dataset contains locations and attributes of Metro lines, created as part of the DC Geographic Information System (DC GIS) for the D.C. Office of the Chief Technology...
Search relevance: 1.00 | Views last month: 33 | Catalog Last Checked: September 10, 2026 at 06:46 PM -
This web service depicts nearly 17,000 neighborhood boundaries in over 650 U.S. cities. Zillow created the neighborhood boundaries and is sharing them with the public under a Creative Commons...
Search relevance: 1.00 | Views last month: 32 | Catalog Last Checked: August 03, 2026 at 04:45 AM -
This GIS dataset contains points which depict air quality monitors within EPA's Air Quality System (AQS) monitoring network. This dataset is updated weekly to reflect the most recent changes in...
Search relevance: 1.00 | Views last month: 27 | Catalog Last Checked: August 03, 2026 at 04:43 AM -
These limits and boundaries are measured from the official U.S. baseline, which is recognized as the low-water line along the coast as marked on NOAA nautical charts, in accordance with the...
Search relevance: 1.00 | Views last month: 27 | Catalog Last Checked: August 25, 2026 at 09:50 PM -
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the Virgin Islands, Guam, American...
Search relevance: 1.00 | Views last month: 26 | Catalog Last Checked: September 10, 2026 at 10:50 PM -
A statewide listing of District Court of Maryland Eviction Case Data & its Process. Maryland enacted a new law in 2022 requiring the District Court of Maryland to collect and report eviction case...
Search relevance: 1.00 | Views last month: 25 | Catalog Last Checked: September 10, 2026 at 06:50 PM -
This resource is a member of a series. The TIGER/Line shapefiles and related database files (.dbf) are an extract of selected geographic and cartographic information from the U.S. Census Bureau's...
Search relevance: 1.00 | Views last month: 25 | Catalog Last Checked: August 02, 2026 at 06:37 AM -
National watershed boundary (HUC12) dataset for the conterminous United States, retrieved 10/26/2020
This child item provides a snapshot of the watershed boundary dataset which consists of a shapefile with 87,020 12-digit hydrologic unit codes (HUC12) for the conterminous United States retrieved...
Search relevance: 1.00 | Views last month: 24 | Catalog Last Checked: September 10, 2026 at 09:09 PM -
This dataset contains mining claim cases with the case disposition (status) of closed from US Bureau of Land Management's, BLM, Mineral and Land Record System(MLRS). The BLM only requires that...
Search relevance: 1.00 | Views last month: 23 | Catalog Last Checked: September 10, 2026 at 06:22 PM -
This sediment database contains location, description, and texture of samples taken by numerous marine sampling programs. Most of the samples are from the Atlantic Continental Margin of the...
Search relevance: 1.00 | Views last month: 20 | Catalog Last Checked: September 10, 2026 at 08:57 PM
