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twice, with all zones sampled once before tagging in a zone was repeated. A standard daily set consisted of six nets, run every 2 hours, three times per netting day. Lake trout were located with the use of an electronic fish locater before nets were set. Every fish from each net was freed and placed in a live-well before any fish from that net was tagged. In 1981 and 1982, fish were placed in number 3 metal tubs; while in 1985, a 75 gallon tank was utilized. Captured lake trout were weighed and measured, tagged and then released in the area of capture. In 1982, the left pelvic fm was clipped from each tagged fish and in 1985, scale samples were taken from each tagged fish for age-growth determinations. The left pelvic clips of the 1982 fish were used to determine tag loss. Detailed records were kept for each tagged fish. Records included tag number, length, weight, specific area captured, depth of water, condition of fish upon release and date of capture. Fatally injured fish were weighed, measured and used to provide food habits data. A fish was released only if the biologist was confident it could survive. All tagging records from the 1981 and 1982 studies were sent to the Utah Division of Wildlife Resources office in Salt Lake City, Utah, where 1981-1982 tags were returned by anglers for processing and payment. Letters were sent to each angler returning a tag. Records from the 1985 tagging were kept in Cheyenne, Wyoming, where 1985 tags were to be sent for processing and payment. All lake trout tagging and return data were placed on the word processor in Cheyenne. A letter was drafted and stored in the word processor to be sent to each angler returning a tag. Upon the return of a tag, the tagging data were typed into the appropriate spaces of the letter and a prompt reply returned to the fishermen. The $5.00 reward check was sent later, after processing by the Fiscal Division. Payments for rewards for each fiscal year were divided equally by the two states. Printed signs were placed at all access points on the reservoir, visitor information areas, sporting goods stores, license vendors, etc., describing the study and requesting angler cooperation. News releases were periodically dispersed to inform the angling public of the study. Concerns were expressed about survival of lake trout gill netted at depths ranging from 40 to over 90 feet. Survival of fish which bled from the gills, because of the cutting of gill filaments from entanglement in the net was also of concern. In order to evaluate these fears, a short term survival and general condition experime!lt was undertaken in 1982 and 1985. Several tagged lake trout in the poor, fair and good condition categories were placed in a framed-net live car. The live car was suspended by an inflated tire overnight at approximately the same depth the fish were captured. The general condition of the fish was noted and their tag numbers recorded before release. RESULTS A total of 711ake trout were tagged during the months of October, November and December 1981. The fish ranged in weight from 0.37 to 20.8 pounds. During the months of April and May 1982, a total of 214 lake trout were tagged. These fish ranged in weight from 2.9 to 18.2 pounds. Utah and Wyoming biologists hoped to tag at least 400 lake trout during 1981 and 1982. Wyoming assumed the responsibility for the study during the months of April and May of 1985. A total of 400 lake trout were tagged ranging in weight from 0.7 to over 33.0 pounds. Lake trout tagging began on April 17, 1985 and was completed May 24, 1985. Only eight full days and 10 half days of netting in conjunction with the spring trend netting were required to tag 400 lake trout. All live lake trout from the trend netting were also tagged and released. The trend netting was responsible for 62 of the 400 lake trout tagged. 18