Map Resources

Sources of maps

USGS Topographic Maps (7.5 minute) are sold at some bookstores and outdoor/camping shops, or they may be obtained from USGS Map Sales, Box 25286, Denver, CO 80225. Phone (303) 202–4700.

USGS Land Cover and Land Use Maps (scale 1:100,000) may be obtained from the Colorado address above.

National Wetlands Inventory Maps (scale 1:24,000) may be obtained from the Mapping Center, USGS, 507 National Center, Reston, VA 22092. Phone (703) 648–6892.

Aerial Photographs (various scales) are available from USDA Aerial Photography Field Office, 2222 West 2300 South, Salt Lake City, UT 84119. Phone: (801) 975–3505. Web: http://www.apfo.usda.gov

Agricultural Stabilization and Conservation Service (ASCS) and Natural Resources Conservation Service (NRCS, formerly the Soil Conservation Service) offices in your county have aerial photos that you may look at. Check the phone book under “United States Government, Agriculture Dept. of” for the location and phone number of the office in your county.

Land management agencies (including federal and state/provincial offices) may have aerial photographs that you can photocopy (Table 1 on page 2.6 of the Study Site Instructions section).

Canadian Topographic Maps The Canada Map Office no longer distributes maps directly to the public. They recommend you purchase National Topographic System maps from any of over 900 map dealers across Canada, the United States and overseas. To find map dealers in your area, please consult the Yellow Pages under “MAPS” http://www.yellowpages.ca/, or contact any Regional Distribution Centre. See the following web site for more details
http://maps.nrcan.gc.ca/main.html.

Mapping resources on the web

If you can’t find sources of maps in your area, you may want to try the worldwide web. The following web sites may be of use.

For the United States
http://www.topozone.com This site has topographic maps for the entire United States. You can select different scales at the top of the map, and you can select how latitude and longitude are displayed below the map (select D/M/S for degrees/minutes/seconds). As you move the mouse over the map, latitude and longitude are displayed in the status bar at the bottom of the screen.

For Canada
http://geonames.nrcan.gc.ca/english/Home.html This site does not have topographic maps, but it does have road maps. Query by name and then submit search. Then click the button under “details,” and then click the “Earthscape II” icon. As you move the mouse over the map, latitude and longitude are displayed at the bottom of the map in decimal degrees.