An interesting sinkhole with an apparent cave passage at the bottom of a rubble pile — a collapsed sink with a vertical entrance. Didn't have ropes so couldn't get into the cave, but it's clearly been attempted before by others. Doesn't appear to have extensive passage but worth a return trip properly equipped. Located on an alluvial fan just outside Death Valley National Park.

Laying my head to rest after a day of hauling packs down 350 meters of rebelays, Y-hangs, and famous traverse lines in the tight corridors of the 'Torture Chamber.' At potato mix dinner at Camp 1.5, eyes heavy as the body settled into a mud-packed corner shelf. The darkness of deep cave is absolute — no visual reference, no light, no bearing on time. Cave camping is not a merit of honor for the elite but a luxury that reinforces purpose and commitment while allowing time at the forefront....

Tanner Wash is a Marble Canyon canyoneering route that can be combined with adjacent canyons for a day trip or multi-day adventure. Park on Navajo Nation land and get the required Navajo Nation permits before heading into Grand Canyon territory. With Andy Orr. Small, narrow slot passage before opening into the wider Marble Canyon drainage.