Michigan Department of Natural Resources. (2016). Aerial Survey 2012 Pattern: Michigan. Michigan DNR. http://gis-midnr.opendata.arcgis.com/datasets/6dde516398d148d1aeb5867fa8971e10_37

Available from: https://geo.btaa.org/catalog/6dde516398d148d1aeb5867fa8971e10_37