Iowa Department of Transportation. (2020). Metropolitan Planning Organization (MPO) TAP: Iowa. State of Iowa. http://public-iowadot.opendata.arcgis.com/datasets/03b09573a57b4e618648fa7aa4ff36ce_0

Available from: https://geo.btaa.org/catalog/03b09573a57b4e618648fa7aa4ff36ce_0