Iowa Heritage Digital Collections
State Library of Iowa

Browse Items (123 total)

Ray Wycoff and George Carlson assessing soil conditions.
Water erosion in Delaware County, Iowa.
Silt erosion in a ditch.
Sediment collection in the ditch.
Sediment at the bottom of the hill.
Bob Sack aluminum drop spillway structure.
Output Formats

atom, dcmes-xml, json, omeka-xml, rss2