Another unpublished canyon in the Matkat system is one we named Dump Truck. It’s the east Sinyella Fault arm of the big east tributary arm of Matkat. It was named Dump Truck because the exit was so huge spilling out into the east arm of Matkat in an un-missable way when walking the Redwall rim in that area. The exit of Dump Truck meets with the exit of Panameta. This fact alone made it quite interesting because Panameta was simply incredible. Would Dump Truck be as good? I looked at the exit of Dump Truck on many trips while exploring the arms of Matkat or heading over to Olo Canyon. I always had a foreboding feeling about it. Of course, it went on the list but we were in no hurry to get to it. It looked like a big exit. REALLY Big! At least half of the Redwall layer. In fact, we weren’t sure the standard 250′ exploration rope would even reach. Frankly, for a long time it kind of scared the crap out of us. Finally, in April 2011 we walked by Dump Truck on the way to Olo and decided to go down it a ways just to scout it out. It had some really nice patios and potholes before the first rappel. We returned the following year to attempt a first descent. Todd Martin and I had a chance to get comfortable with this canyon over the course of 3 years before finally deciding to attempt a descent. But when our other hiking partners saw the exit they immediately revolted. None of them wanted to do it. We spent a few hours talking about “the plan” and various contingencies before they slowly started to warm up to the idea of trying a first. Staring at the exit of this slot was THAT impactful! Nerves calmed down as the descent progressed until we hit a huge keeper. Those foreboding feelings rushed back as, with no retreat options available, we pondered a way to escape.