Public domain
Erosion control, showing check dam and brush at the Pere Marquette recreational project, near Grafton, Illinois
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineErosion control, showing check dam and brush at the Pere Marquette recreational project, near Grafton, Illinois. 1936-01-01. Mydans, Carl. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.