Web Sites for Common US GIS Data Products

ESRI is the easiest site from which to obtain TIGER data. The demographic data is also available – but it is only a subset of what is available on the Census web site.For basic overview of census data products see: http://www.census.gov/mso/www/c2000basics/00Basics.pdf

Web Sites for CA GIS Data

CASIL: The California Spatial Information Library

·http://www.gis.ca.gov/

·This site specializes in free, high quality (I didn’t say high resolution), well documented (i.e. good metadata) statewide datasets.These are a “greatest hits” for CA data.

CA Dept. of Forestry and Fire Protection, Fire and Resource Assessment Program

·http://frap.cdf.ca.gov/data/frapgisdata/select.asp

·Great, high quality forestry, vegetation, fire data.

·Lots of data set names sound same as what’s on CASIL. Some are. You need to read the metadata to figure out what site has best quality, most useful versions of data you want.

CA Dept of Conservation Farmland Mapping & Monitoring Program

·http://www.consrv.ca.gov/DLRP/fmmp/map_products/download_gis_data.htm

·County vector data of land use classifications, focus on agriculture.

·Many use this data to identify urban areas in CA

·This data has been produced for many years so it is a good series for change detection.

·The data scale is stated at a 1:100k but probably much better.

·Although data may be avail for your county of interest, the entire county may not be covered in the data set.

CA Dept of Conservation, Seismic Hazard Mapping Program

·http://gmw.consrv.ca.gov/shmp/index.htm

CA Department of Fish & Game

·Bathymetry project: statewide bathy data

http://maphost.dfg.ca.gov/bathymetry.htm

Bathymetry (under water elevation) data for the entire coast of CA

·Marine Project GIS Data

http://www.dfg.ca.gov/itbweb/gis/mr.html

CA coastline,bays, estuaries

USFS Pacific Southwest Region GIS Clearinghouse

·http://www.fs.fed.us/r5/rsl/clearinghouse/data.shtml

·Spotted owl habitat, historic CA vegetation, etc.

·CA forestry related ecological and planning data

BLM in CA

·http://www.ca.blm.gov/gis/

·Areas of Critical Environmental Concern

·Designated wilderness areas

·National parks, forest boundaries

Some GIS Specialty Sites

UCB GISC

·http://www.gisc.berkeley.edu/data/datasets.html

·Some high resolution data for Oakland, Berkeley, UC Merced areas

Bay Area Metropolitan Transportation Commission

·http://www.mtc.ca.gov/GIS/data.htm

Tahoe Conservancy

·http://www.tahoecons.ca.gov/

·Data for Lake Tahoe Area

SANDAG: San Diego Council of Governments

·http://www.sandag.org/

·Data for the San Diego Area

RRIIS: Russian River Interactive Information System

·http://rriis.migcom.com/

More Sites for US GIS Data

USGS EROS Data Center

·http://edc.usgs.gov/geodata

·Gives you detailed info on all USGS national data products

·Not all data products available for free.

·Much of the USGS data can be found on other web sites for free, usually provided by GIS Data Depot or a state agency web site.

USGS National Water / Hydrology Data

·http://waterdata.usgs.gov/nwis

GIS Data Depot

·http://www.gisdatadepot.com/

·A geospatial data downloading clearinghouse to free geospatial data.

·Also INTERNATIONAL data available.

USGS Seamless data server

·http://seamless.usgs.gov/

·Your place to view and download NED (DEM) data.

·Also provides access to other USGS data products

The National Atlas

·http://nationalatlas.gov/

·http://nationalatlas.gov/atlasftp.html

·An odd, intriging mix of national social & environmental data sets.

Natural Resources Conservation Service (NRCS) Soil Survey Geographic (SSURGO)

·http://www.ftw.nrcs.usda.gov/ssur_data.html

·Soils data. Not all of US available.

US Fish & Wildlife Service Wetlands Inventory (NWI)

·http://wetlands.fws.gov/

·The place for wetlands data.

Online Data Catalogs for Finding Geospatial Data

CEIC: California Environmental Information Catalog

·http://gis.ca.gov/catalog/

·Almost all data produced by CA agencies should be found here.

The Federal Geographic Data Committee (FGDC) Clearinghouse

·http://www.fgdc.gov/ (go to Clearinghouse)

·Provides search engine for US and International geospatial data.

ESRI’s Geography Network:

·http://www.geographynetwork.com/

·A search interface to both free and for fee data.

Alexandria Digital Library

·http://webclient.alexandria.ucsb.edu/

·Clearinghouse of CA geospatial data with lots of download links to the actual data.

Google

·If all else fails, do a general web search.