USGS Water Science Centers are located in each state.
US
Geological Survey - Iowa Water Science Center - RAGBRAI 2009: "Learn
about the Land"
The US Geological Survey – Iowa Water Science
Center has teamed up with the Iowa Department of Natural
Resources – Geological Survey Bureau again this year to produce
"Learn About the
Land" informational packets for RAGBRAI XXXVII. The packets
include a daily trip log for each of the 7 days of the ride. As
the cyclists cover the 442 miles of this year’s trip, they will
be traveling over the Loess Hills, glacial till and flood
plains.
Click on each days brochure to learn more about the
land of Iowa.