- CCC Improvements - Jay Cooke State Park MNBeginning in 1933, the Civilian Conservation Corps (CCC), working from NPS regional office designs, built new structures and cleared “unneeded or undesirable” buildings, lakes, and ponds. Corpsmen also did landscaping work to improve the camp- and picnic grounds, overlooks, and places for parking. Corpsmen also helped restore historic buildings.
- City Hall - Carlton MNCarlton's stately city hall was constructed by the Works Progress Administration (W.P.A.) in 1937.
- Suspension Bridge - Jay Cooke State Park MNFrom 1934 to 1935, the Civilian Conservation (CCC) reconstructed a suspension bridge, spanning the St. Louis River, at Jay Cooke State Park.
- The River Inn - Jay Cooke State Park MNJay Cooke State Park’s River Inn, constructed by the Civilian Conservation Corps (CCC) using a local rock known as gabbro, is among the “largest CCC buildings in Minnesota.”