Steamboat Rock 1979/1980
PDF (8.1 MB)
USGS - Historic Quads
Steamboat Rock 2010
PDF (13.0 MB)
USGS - US Topo
Steamboat Rock 2013
PDF (20.9 MB)
Steamboat Rock 2015
PDF (23.1 MB)
Ames
1:100,000
Waterloo
1:250,000
Iowa Falls East
Ackley
Aplington
Owasa
Steamboat Rock
Wellsburg
New Providence
Eldora
Ivester