National Geologic Map Database Topo View : Access current and historic topographic maps. Maps are available to view online and for free download. Zoom into your area of interest, click on the map, and then go to Maps Here to see available maps . Scales and publication dates vary.
USGS Map Locator and Downloader : Free downloads of topographic maps are available from the U.S. Geological Survey. Zoom and scroll to the needed location in the map search box. Select the Mark Points option to the right of the map. Click on the map in your area of interest. Click on the red place marker to view the maps available for download. Maps are also available for purchase via this list by clicking on the "buy" link.
Soils - For soil maps of Moeur Park or San Tan Regional Park, see files listed on GIS Resources tab. For other study areas, use a USDA soil survey such as theSoil survey, eastern Maricopa and northern Pinal Counties area, Arizona. Contains structural engineering information, along with some flora/fauna information associated with particular soils. The text of this soil survey is available online. GIS Soil Shapefiles that correspond to these soil surveys are available for the entire State of Arizona via the ASU GIS Data Repository (Under... AZ_Data_by_Topic\Natural_Features\Soils). These Shapefiles can be converted to KML or CAD files using Esri's ArcMap'sToolbox Conversion Tools. ASU Students, Faculty, Staff have access to ArcMap through MyASU MyApps.
United States Naval Observatory Sun Altitude and Azimuth Table Calculator For a given day, provides the altitude of the sun (angle of the sun above the horizon) and the azimuth (Compass direction from where the sun is shining. Add or subtract 180 degrees to calculate the direction of the shadow.)
Sandburg Center for Sky Awareness - Shadow Length Calculator Calculates the length of an object's shadow base on the altitude of the sun.
Geological maps are available at the Map Collection.
Flora & Fauna
Birds of North America : provides comprehensive life histories for over 760 species of birds breeding in the USA (including Hawaii) and Canada.
All About Birds: can search by topic, name or shape, includes brief articles.
Map of Life : Allows one to retrieve a list of species for the vicinity of any location worldwide.
U.S. Bureau of Land Management (BLM) GIS data for Arizona - Contains a variety of shapefiles and coverages for ecological, habitat, mineral, and wildlife management areas within Arizona. (Requires use of GIS software such as ArcGIS Explorer or ArcGIS.)