For more information about Pennsylvania geologic maps, topographic maps, and aerial photos, please contact:
DCNR Bureau of Topographic and Geologic Survey
3240 Schoolhouse Road
Middletown, PA 17057
717-702-2017
For information regarding Pennsylvania historical records, please contact:
Pennsylvania Historical & Museum Commission Pennsylvania State Archives
350 North Street
Harrisburg, PA 17120-0090
(717) 783-3281
