Baltimore County Web Map Portal. (Aug 23, 2016). Orthophotography: Baltimore County, Maryland, 2007. Baltimore County, Maryland. http://data-bc-gis.opendata.arcgis.com/datasets/fe638d0753964ab8907c511f659fe316

Available from: https://geo.btaa.org/catalog/fe638d0753964ab8907c511f659fe316