Data sources
When I work on GIS projects, I use this page to keep track of good sources I find for data.
World
Digital Chart of the World DCW converted to Arc/Info coverages in e00 format; request data for a region and this server will pack the data in a tar archive for your downloading.
CIA World DatabBank II downloadable data
The server is at the Penn State map library
Map of UTM zones
Global Land Cover Facility, Institute for Advanced Computer Studies, University of Maryland
Landsat, SRTM, more
Europe
GISwiki in German
France
North America
United States
(2015-Aug-29 I wonder which of these are still relevant.)
Harris Mapcart Free downloads of SDTS data
NASA Reverb|Echo
USDA Geospatial Data Gateway
USGS 3DEP viewer (DEM, LiDAR) http://viewer.nationalmap.gov/basic/?basemap=b1&category=ned,nedsrc&title=3DEP%20View
USGS EarthExplorer
USGS National Map including USTopo
USGS National Water Information System (NWIS) mapper: http://maps.waterdata.usgs.gov/mapper/index.html
Arkansas
Big Woods Cache River Home of the Ivory Billed Woodpecker and a former US president.
California
State of California Geo Portal
Data Depot -- California
Napa County GIS catalog
Northern California includes 48 counties, here are some of the northernmost ones. That's a lot of counties, I need a map. What a big state this is.
- Amador
- Butte
- Colusa
- Del Norte
- El Dorado
- Glenn
- Humboldt
- Lake
- Lassen
- Marin
- Mendocino
- Modoc
- Napa
- Nevada
- Plumas
- Sacramento
- Shasta
- Sierra
- Siskiyou
- Solano
- Sonoma
- Sutter
- Tehama
- Trinity
- Yolo
- Yuba
Marin county
MarinMap is the county consortium site. Lots of data here.
They have TIFF and MrSID format 6" aerial photos for the entire county. You can download a vector grid to determine which tiles you need.
Mendocino county
"The County does not offer public access to interactive GIS information, but you may contact the County's Information Services Department at (707) 463-7200 and ask for 'GIS' for more information regarding GIS data layers."
http://www.co.mendocino.ca.us/planning/CountyMaps.htm has PDF maps
Monterey county
Monterey county's GIS office is in Salinas The county uploads all its data to arcgis.com. http://montereycountyopendata.montereyco.opendata.arcgis.com/
Sonoma county
PRMD downloads (PRMD = Permit and Resource Management Dept.)
Sonoma VEG map Vegetation, Habitat & LIDAR data for Sonoma County
Sonoma County GIS Data Portal download site
LiDAR and orthos: ArcGIS REST service http://mangrove.cnr.berkeley.edu/arcgis/rest/services/
or perhaps http://mangrove.cnr.berkeley.edu/arcgis/rest/services/SONOMA_HYDROFLATTENED_BARE_EARTH_HILLSHADE/ImageServer
Hillshade in QGIS
Create a gdal service description file, e.g. by running this in a terminal:
gdal_translate "http://mangrove.cnr.berkeley.edu/arcgis/rest/services/SONOMA_HYDROFLATTENED_BARE_EARTH_HILLSHADE/ImageServer?f=json&pretty=true" s.xml -of WMS
You can now load this file into QGIS, e.g. by drag-and-drop.
Hawaii
U of Washington 10m DEM in old format
Iowa
Iowa Geographic Information Council
Nevada
BLM
Keck Library (at UNR) Lots of rasters including DRG's and DEM's and NAIP photos and historic maps. Also Mars and Venus. (The planets not the gods)
NDOT Not much here -- you can order paper maps.
University of Nevada, Reno clearinghouse
Nevada natural heritage http://heritage.nv.gov/gis/gisindex.htm
Nevada State Dept of Conservation & Natural Resources Water Rights Database
Humboldt
Washoe
http://www.co.washoe.nv.us/gis/datawarehouse.htm
Oregon
CLAMS data Coastal Landscape Analysis and Modeling Study at FSL
Northwest Habitat Institute GIS data data for Columbia River Basin, Oregon, Washington, and Willamette Valley
Northwest GeoData Clearinghouse at the Portland State Dept of Geology
Oregon Coastal Atlas
GIS data,
a project of the Oregon Dept of Land Conservation and Development
Oregon Geospatial Data Clearinghouse
OSU map room
OSU Virtual Oregon
DOQ index
OSU experimental forest
10m DEM data for entire state
UofO Library
1:24k DOQ's and DRG's not trimmed DOQ
REO has DRG's tucked away, search by latlon DRG DEM
Benton County
Benton county GIS dept
City of Corvallis GIS
ftp site
Lane county
RLID "Regional Land Information Database of Lane County" $$$
City of Eugene: ?
Linn county
Linn county has most of its data available on its FTP site
City of Albany - no
City of Lebanon - no
City of Sweethome - no web site
Polk county
Polk will sell you parcel data for $60. They don't make any other data available.
City of Salem- "Call us" $$$
Washington
Start here WS DOT and scroll to the bottom of the page for links to other WA sites.
