Contact Us

Staff photo of the Geologic Resources Division

Information Contact: 303-969-2090

Division Leadership:

Stephanie B. Gaswirth, Division Lead
Contact Stephanie

Harold (Hal) Pranger, Geologic Features and Systems Branch Lead
Contact Hal

Julia Brunner, Energy and Minerals Branch Lead
Contact Julia


Mailing Address:

National Park Service

Geologic Resources Division

PO Box 25287

Denver, CO 80225-0287


Shipping Address:

National Park Service

Geologic Resources Division

12795 West Alameda Parkway

Lakewood, CO 80228

Last updated: March 8, 2022