The Cartographic Branch holds aerial imagery covering much of the United States and also many areas around the world. Today's post will focus on getting started with aerial imagery covering the United States, and specifically, Record Group (RG) 145 imagery. For more information on locating foreign aerial photography, see our previous posts: Researching Foreign Aerial … Continue reading Researching Aerial Photography of the United States : RG 145 Aerial Indexes Now Digitized