Location:
460 Doremus Ave.,
​Glen Rock, NJ 07452

Mailing Address: 
PO Box 34
Glen Rock, NJ 07452

​contact@thielkearboretum.org

Friends of the Glen Rock Arboretum, Inc. is a not-for-profit, 501( c)3 volunteer organization, dedicated to the preservation, maintenance and development of the Arboretum.