Where was Chris' Datsun found?

Chris' Datsun was found in the Detrital Wash near Lake Mead.

A. califomica grows only in gypsum soil of a sort that occurs in abundance along the south shore of Lake Mead, so that is where Walsh led his team of rangers to conduct the botanical survey. They turned off Temple Bar Road, drove two roadless miles down the bed of Detrital Wash, parked their rigs near the lakeshore, and started scrambling up the steep east bank of the wash, a slope of crumbly white gypsum. A few minutes later, as they neared the top of the bank, one of the rangers happened to glance back down into the wash while pausing to catch his breath. “Hey! Look down there!” he yelled. “What the hell is that?”

At the edge of the dry riverbed, in a thicket of saltbush not far from where they had parked, a large object was concealed beneath a dun-colored tarpaulin. When the rangers pulled off the tarp, they found an old yellow Datsun without license plates. A note taped to the windshield read, “This piece of shit has been abandoned. Whoever can get it out of here can have it.”