Follow this valuable list of pointers to State GIS Clearinghouse nodes… a nicely updated list compiled by the folks at Montana’s NRIS… nice job! Most of these resources contain freely downloadable data products that include DRG, DEM, DOQ, soils data, census products, aerial photography, NED, and more.
An effort to make the entire USGS DRG set freely available to the public.
Just enter the coordinates of a spot to download a DEM in SDTS format – The cartographic data proposed here is in SDTS format
Interactive web service providing imagery and data from affected regions of Hurricane Katrina, Wilma, and Rita. Select GIS Analyst tab and follow instructions to access FTP download area… these data are for NON-commercial use only
Users of this USDA server wil find DRGa and DOQQs served up in NAD83 and NAD27
There are nine GIS data layers offered for each state in the Gulf of Mexico. These include: four vector shorelines, an offshore baseline used for generating shore-normal transects, transects for long- and short- term shoreline change rates, transect/shoreline intersection positions, and a vector layer to show the spatial extents of beach nourishment projects.
NTAD 2003, introduced at the Environmental Systems Research Institute User Conference in San Diego, contains four new databases that add significant value to this signature BTS product. The information on MPO boundaries is significant because these organizations play a major role in decisions regarding federally funded transportation projects within their boundaries
A comprehensive, free transportation database with data themes and layers for Canada, USA, and MExico.
NOAA’s National Geophysical Data Center (NGDC) provides scientific stewardship, products, and services for geophysical data from the Sun to the Earth and Earth’s sea floor and solid earth environment, including Earth observations from space.
This Coastal Relief Gridded database provides the first comprehensive view of the US Coastal Zone; one that extends from the coastal state boundaries to as far offshore as the NOS hydrographic data will support a continuous view of the seafloor. In many cases, this seaward limit reaches out to, and in places even beyond the […]