5 August 1979, Continued 200-300 feet long, severely impacted by cattle, a dearth of vegetation, high browse lines on all trees and shrubs along its course. A mud bottom forested by croupies and tracks. On the vicinity, we saw 11 cows. We proceeded across the valley to a rock outcrop just W of the fork in the wash, where we camped and set 40 traps (as before). Most of the traps were along the wash, vegetation mostly tall Artemisia, some Eriophyllum, Paralia, scattered small pitons. A small, very rocky wash, a large rock outcrop. Elevation 6700'. Set traps at sunset (8PM). There was a short (15-20 ft) prospect tunnel in rock outcrop, evidence of Neotoma in rocks. Saw a Squirrel (?) swooping near us just as it was getting dark. 6 August 1979. Last night's traps caught: 1 Peromyscus maniculatus (#130) Neotoma lepida (#131) Auniospermophilus(#132). Left traps until noon. Hiked up canyon to spring #232, frightening a cow away from the spring as we approached.