Non-profit organization in Michigan offers climbing activities for people of all abilities and all ages. Includes details of specialized equipment, photos, upcoming events and links.

Instructions for converting a dead tree into a climbing wall.

Articles on tree care, equipment use, cat rescue, and other tree climbing issues. Discussion forum. Photos.

Provides general information, pictures, FAQs, a calendar of events and a membership form. Located in Arvada, Colorado, United States.