The primitive camp is set up on the rim near the western high point. This is a nice exposed bivouac site. As darkness arrives the distant light of El Paso, Texas and Las Cruces, New Mexico appear. The camping shelter chosen for the trip is an old home made bivouac sack along with a plastic tarp for a ground cloth and partial rain cover if needed. Any precipitation tonight will be as snow.
Snow is quite compatible with home made bivouac bag, but rain tends to be unpleasant.
A bivouac sack is the best way to camp in the desert since one can see everything. Tents take this away. The greatest problems with minimal shelters are rain and bugs. Neither are likely to be a problem on this trip. The sleeping bag is a summer weight semi-rectangular one.