Baltimore County Web Map Portal. (2016). Orthophotography: Baltimore County, Maryland, 2002. Baltimore County, Maryland. http://data-bc-gis.opendata.arcgis.com/datasets/da95436623db49cf84201b862a3f8b8d

Available from: https://geo.btaa.org/catalog/da95436623db49cf84201b862a3f8b8d