Culbath 1942 Jan 21. S. Fork Mt 4 mi N. Mad River Rock, El. 3100. Trinity Co., Cal. A strong south east wind has been blowing all day and tonight at 10:30 it began to rain. I collected Peromyscus maniculatus and Oryzomyus true along with one specimen of Clethrionomys. The Clethrionomys was taken in an opening created by a ground squirrel. Many small pole size Douglas firs have fallen and caused a tangle of logs on this boggy ground. It was under a portion of this tangle of logs that the specimen #151 was obtained. This morning was spent in setting out traps running along the ridge of South Fork Mt starting north from highway #36 for a distance of about two miles (4 mi N + 2 mi E Mad River Rock). Two sets were made along the road on the ridge, that runs to Blake lookout for coyotes. Ward Russell and I both circled around a large spring known as Lemonade Spring setting out mouse traps and steel traps for rabbits. Sign was good for pika, rabbit and deer. There has been some logging in the area and many large down logs are laying in the area of the spring, which measures about 150 ft long by 80 yards wide. The ground was almost completely covered with grass and wild ginger.