Awesome site for Prince William County
This map site allows you to turn off and on layers of maps that include Aerial Photography back to 1937...great for finding buildings that used to be there.
http://gismapper.pwcgov.org/CountyMapper/
just go to layers and Aerial Photography and toggle the year you want to look at...you can also turn roads, parcels, etc. on and off.
Phil
Re: Awesome site for Prince William County
Man Phil
certain secret's we local boys should keep for ourselves and one of those is the mapper ................ competition is bad enough ,dealing with the P.W.C board of supervisers and the condemation of citizens land when they want it and the preservation society and archeologist seezing places for the government ...