Mounting a z-drag or z-pulley system is an important technique to learn so you can efficiently help rescue a victim from above. Using standard crevasse rescue equipment mountain guide Joe Vallone explains step by step how to initiate this part of the setup to perform a successful rescue. Make sure you are familiar with building a t-slot anchor prior to attempting these techniques.br br Thanks to the BMC Insurance for supporting Backcountry Essentials. If you're planning a trip make sure you have the right insurance to cover your activities. br br For more info about Joe please visit www.provallone.