Michigan Department of Natural Resources. (2018). Aerial Imagery (DOQ) Grid: Michigan, 1992 & 1998 . Michigan DNR. http://gis-midnr.opendata.arcgis.com/datasets/86b2406087e043ea8f93bb9f6db9625f_0

Available from: https://geo.btaa.org/catalog/86b2406087e043ea8f93bb9f6db9625f_0