Photography Field Office: A clearinghouse for archived aerial photographs (black &
white, color infrared, and true color) by the U. S. Department of Agriculture Natural
Resources Conservation Service. Photographs are available in scales from 1" = 5000'
to 1" = 200'. To order, send the APFO a legal description of the area (Township,
Range, Section), lat & long. coordinates, or the area identified on a topo, county or
city map. Pre-payment is required. Payment can be made by purchase order (govt. agencies
only), checks, money orders, Visa, Mastercard, Discover and American Express. Once
ordered, the APFO will duplicate the photos and send them to you. Expect 4 - 6 weeks for
development time and 10 days for shipping.
Army Corps of Engineers general information from the Sacramento District.
Army Corps of Engineers Regulatory Guidance Letters (RGLs) .
EPA Wetlands Hotline: A fantastic source of wetland information. They are manned by a private contractor that is professional, knowledgeable, courteous and expedient.
ELI Wetlands Listserver. To subscribe: Send an e-mail message to firstname.lastname@example.org with subscribe eli-wetlands <your e-mail address> as the only text in the body of the message with no subject.
National Wetlands Inventory: Contains downloadable National and Regional lists of plants that occur in Wetlands and digitized data from the National Wetlands Inventory wetland maps. The digital maps can be viewed with ArcExplorer, downloadable from ESRI, Inc..
Natural Resources Conservation Service Hydric Soils Page: Contains downloadable NTCHS hydric soil criteria, national hydric soil lists and state hydric soil lists.
Section 404 of the Clean Water Act: The full text of this section.
Society of Wetland Scientists: A superb organization of wetland scientists and practitioners.
Terraserver: A joint effort of the US Geological Survey, Microsoft, and the Russian Space Agency. This page allows one to view black & white aerial photographs of high (down to 1 pixel = 6') resolution for no charge. (Other photographs are for a fee.)
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