Data

Abstract:

This sample viewshed was computed for a portion of the Appalachian National Scenic Trail to illustrate variations in visibility from the trail.

Publication Date: June 2015 - Data last updated: 2022-06-14

Abstract:

This layer was made using USGS digital elevation data categorized into elevation ranges for predicted 2100 levels of sea level rise in the 2014 U.S. National Climate Assessment (NCA) report. From the NCA, p. 45: "The future scenarios range from 0.66 feet to 6.6 feet in 2100. These scenarios are not based on climate model simulations, but rather reflect the range of possible scenarios based on other scientific studies.

Publication Date: 2009 - Data last updated: 2015-05-29

Abstract:

This data, developed at the National Renewable Energy Laboratory, represents ridgelines across the United States at a 1km spatial resolution.

Abstract:

This layer represents the land surface slope with 250m cell sizes and is measured in percent slope.

Publication Date: September 2016 - Data last updated: 2022-06-16

Abstract:

This layer is a digital elevation model for the United States. Vertical units are in meters. It was created from 10m resolution USGS digital elevation model data, resampled to 250m.

Publication Date: September 2016 - Data last updated: 2016-09-15

Abstract:

This layer displays NOAA bathymetry data for coastal regions of the Atlantic Ocean, Gulf of Mexico, and Great Lakes.

Abstract:

Depicts CNG designated by the U.S. Department of Transportation, Federal Highway Administration as of 10/10/2023. It includes rounds 1–7 for CNG corridor designations.

Publication Date: October 2023 - Data last updated: 2023-11-10

Abstract:

Contains physical information on commercial facilities at the principal U.S. Coastal, Great Lakes and Inland Ports. The data consists of listings of port area's waterfront facilities, including information on berthing, cranes, transit sheds, grain elevators, marine repair plants, fleeting areas, and docking and storage facilities.

Publication Date: January 2020 - Data last updated: 2021-10-15

Abstract:

This layer depicts Anchorage Areas in the United States as designated by the United States Coast Guard.

Publication Date: May 2015 - Data last updated: 2017-01-03

Abstract:

Depicts the number of public transit stops per United States census tract based on data from the National Transit Map (NTM). Each observation represents the count and density (per capita and square mile) of transit stops within a census tract, as voluntarily reported to NTM between 2016 and 2018 by one of 270 regional transit agencies choosing to participate.

Publication Date: April 2019 - Data last updated: 2021-10-12

Abstract:

Depicts U.S. navigable waterways

Publication Date: March 2018 - Data last updated: 2018-08-28

Abstract:

Depicts air navigation points used by aircraft in the United States including VOR, TACAN, DME, and NDBs.

Publication Date: June 2018 - Data last updated: 2019-01-30

Abstract:

Layer displays ferries on major roads in the United States.

Publication Date: July 2012 - Data last updated: 2012-08-23

Abstract:

Depicts extents of airport runways in the United States.

Publication Date: October 2023 - Data last updated: 2023-11-30

Abstract:

Depicts marine structures intended to assist a navigator to determine position, safe course, or to warn of dangers or obstructions to navigation. This data set includes lights, signals, buoys, day beacons, and other aids to navigation.

Publication Date: August 2017 - Data last updated: 2019-01-30