The Geographic Names Information System (GNIS), developed by the USGS in cooperation with the U.S. Board on Geographic Names (BGN), contains information about…
Tag: Data
02.26.2004
GISuser Guide to Accessing Free 2002 TIGER/Line data
The US Census Bureau makes available the 2002 TGER/Line files for free download. The TIGER/Line files are extracts of selected geographic and cartographic…
02.26.2004
GISuser Guide to downloading Free NWI and USFWS data products
The US Fish and Wildlife service makes a number of digital spatial data products available to the public for free download. The data…
02.26.2004
GISuser Guide to downloading Free USGS 1:100K DLGs
Digital Line Graphs (DLGs) are digital vector representations of cartographic information derived from USGS maps and related sources. Intermediate-scale DLG’s are derived from…
02.26.2004
GISuser Guide to downloading Free 1:250K USGS DEMs
A digital elevation model (DEM) is a digital file consisting of terrain elevations for ground positions at regularly spaced horizontal intervals. The USGS…
02.24.2004
The GISuser's Guide to locating and downloading Free USGS data
So, you need to work with USGS data. Perhaps you need DRGs, maybe some DEMs, or maybe even some DOQQs. Before you begin…
01.29.2004
The GISuser's Guide to locating and downloading Free USGS data (Part 2)
This feature complements the original article "The GISuser‘s Guide to locating and downloading Free USGS data". It provides the reader with additional information…
01.09.2004
LIDAR Data Retrieval Tool (LDART) – Data for Mapping Coastal Topography in the U.S
(January, 2004) LIDAR Data Retrieval Tool (LDART) is a Web-based application that the NOAA Coastal Services Center developed to allow its customers, partners,…
01.08.2004
GISuser Looks at Geobase
Through the GeoBase portal, users with an interest in the field of geomatics have access to quality geospatial information at no cost and…
01.06.2004
Massive mosaic is product of space-based earth observation
(Hundreds and hundreds of satellite scenes grouped into tiles have been painstakingly pieced together by Natural Resources Canada to create one huge photograph…
