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September 17, 1962 Mr. Banks covered over a mile of stream bank at the Split Mountain campground. In addition to other dead fish he found two of the rare humpback suckers. TIe observed some live fish in the ,area and recorded the ir act ions . Mr. Banks continued to Echo Park and observed the effects of the poisonine; there. He cOlmted and measured a number of the dead fish including two rare hybrid suckers and a single specimen of the humpback chub (Gilncypha). He found a few channel catfish st 111 in distress. Other species appeared to have been dead :for some time. September 18, 19b2 Mr. Banks continued on to Rainbow Park to record fish loss and to make other observations. Most fish picked up there were flannel-mouth suckers. Mont '-lere in a deteriorated condition but some were recently dead. Several live fish were observed. Mr. Banks walked along nearly two miles of stream in the Island Park area.. He examined and measured fi..fty of the dead fish he found. A single blue head mountain sucker was found in distress. Several dead fish were observed :floating in the water. September 20, 196~ Mr. Banks returned to Fort Collins for consultation with Dr. Hagen. Plans for his return to Dinosaur National Monument until mid-November were made. Mr. Banks was able to secure employment in the Monument as a laborer during this period. Superintendent Semingson provided the opportunity for Hr. Banks to continue collections in his free time by providing this job. October 12 - l4, 1962 Dr. Ragen traveled to Dinosaur National Monument to make necessary arrangements with Park Service personnel for an extensive sampling expedition to cover the same stations investigated in October of 1961. Mr. Banks and Dr. Hagen visited several of the sites on the Green and Yampa Rivers and made several preliminary observations and checks. October 19 - 21, 1962 Dr. Hagen returned to the Monument with l4 students in advanced classes of fisheries science. The men were divided into two survey parties. Crew No. 1 thoroughly sampled the stream sections in the vicinity of Split Mountain Campground and for a distance dovmstream. This team uhich ,.ms the largest group used an electric shOCking unit along with gill nets and several sizes of seines. After sampling intensively for more than four hours they continued on to Island Park and spent approximately three hours of intensive sampling in that area. = 3 =