Michigan Department of Natural Resources. (2016). Aerial Survey 2015 Pattern: Michigan. Michigan DNR. http://gis-midnr.opendata.arcgis.com/datasets/40b75b1b466c499dbab6aa85853cdb57_46

Available from: https://geo.btaa.org/catalog/40b75b1b466c499dbab6aa85853cdb57_46