What's that green stuff in the water? Here's a quick rule of thumb for when you should keep out.
Iowa is the land of corn, hog farms, and … river otters? - Vox
Legacy Sediment for Fourth Graders - Prairie Rivers of Iowa
Notes from a prairie tour across Iowa - Bleeding Heartland
Green Stuff in the Water - Prairie Rivers of Iowa
Notes from a prairie tour across Iowa - Bleeding Heartland
Notes from a prairie tour across Iowa - Bleeding Heartland
Legacy Sediment for Fourth Graders - Prairie Rivers of Iowa
Prairie Rose State Park, Iowa DNR
Tomorrow River - Miles Paddled