Where to find Quadrangle Maps

Iowa Department of Natural Resources
Energy and Geological Resources Division
Geological Survey Bureau
109 Trowbridge Hall
Iowa City, IA 52242-1319
Ph: 319/335-1575
Fax; 319/335-2754

U.S. Department of the Interior
U.S. Geological Survey
509 National Center
Reston, VA 20192
1-800-ASKUSGS (1-888-275-8747)

Dealers in the US

On-line Mapping Tools

• Iowa Geographic Image Map Server Aerial, Quadrangle, Elevation, & Land cover maps.
• Iowa UTM Coordinate Calculator Converts township, section, range (TRS) into UTM coordinates.
• TopoZone
  Commercial mapping website.

Map Dealers in Iowa

Explore - A Map Store
620 W. Lincoln Way
Ames, IA 50010-6900
(515) 232-8843
Fax: (515) 232-4159
Email: explore@ames.net

Sundquist Engineering PC
120 S Main
PO Box 220
Denison, IA 51442
(712) 263-8118

Aerial Services Inc.
2120 Center St.
PO Box 336
Cedar Falls, IA 50613
(319) 277-0436

Iowa Geological Survey
109 Trowbridge Hall
Iowa City, IA 52242-1319
(319) 335-1575

USGS Map References

• Topographic Map Symbols
  A handy online reference to symbols found on USGS topographic maps.
• Several booklet titles
  Paper or Online editions available.
  – Topographic Mapping
  – USGS Maps