“This singletrack has multiple switchbacks, hence the name "The Zipper".
— Kev Dox
This singletrack's multiple switchbacks climb one side of the ridgeline and descend the other side. Runners can take the trail halfway and exit onto the The Bowl
via trail connector B-B, or run it back to the bottom and the start point of The Zipper to complete the loop.
The start/end point of The Zipper is also the start/end point of Rusty Barrel
and Hamburger Hill