US Topo
2022 edition
Scale 1:24,000 ยท Current
Quadrangle archive
Mount Ayr, IA
12 available scans
US Topo
2018 edition
Scale 1:24,000
US Topo
2015 edition
Scale 1:24,000
US Topo
2013 edition
Scale 1:24,000
US Topo
2010 edition
Scale 1:24,000
Historical topo
1985 edition
Scale 1:100,000
Historical topo
1985 edition
Scale 1:100,000
Historical topo
1981 edition
Scale 1:24,000
Historical topo
1947 edition
Scale 1:62,500
Historical topo
1947 edition
Scale 1:62,500
Historical topo
1945 edition
Scale 1:62,500
Historical topo
1945 edition
Scale 1:62,500