SRT Basal Anchor Kit

An SRT basal anchor kit groups the sling and hardware needed to tie a single rope off at the base of the tree, usually in a way that can be released from the ground. It is a common way to set up a stationary rope climb when a canopy anchor is not the right choice.

Why anchor at the base

With a basal anchor, the climbing line goes over a chosen union in the canopy and back down to the base of the tree, where it is tied off to a sling or anchor device. The ground crew can see and reach the anchor, and a releasable setup lets them lower a climber if something goes wrong.

Basal anchors double the load on the canopy union compared with a canopy anchor, so choosing a sound union is critical. Weigh that against the benefits of access and rescue.

Basal anchors are popular for climbers starting out in single-rope technique and for crews who want a rescue-ready setup on every climb. A kit also keeps the pieces together in one bag, so the anchor goes in the same way each time and nothing gets left in the truck. Talk through the anchor plan with the ground crew so everyone knows how it is set and released.

Setting up safely

Kit contents vary, so check what is included and read every maker's instructions for the parts in the kit. Practice the setup and release on the ground before you climb on it.

Inspect slings, rings, carabiners and any device before each use. Anchors are life support. Set them under ANSI Z133 practice and only after proper training, and have a rescue plan in place. See other climbing hardware in other climbing gear.