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Maintenance creel surveys were run in 1977, 1979, 1980, and 1981. These were basically 6 month surveys (April through September) which were based on the same schedule (Table 11) as followed during years of more intensive creel cen- sus. Estimates of harvest from the 6 month survey were expanded to annual estima- tes for each species individually by the ratio of 6 month harvest to annual har- vest obtained during the 1978 survey. The estimates were then added to obtain the total estimated harvest, and the harvest was divided by the estimated fishing pressure to obtain the mean creel rate. A computer program was developed by the Utah Division of Wildlife Resources during 1979 to analyze creel survey data. The program was based on a similar one used for creel data collected on Lake Sharpe, South Dakota (Schmidt 1975). Although Wyoming and Utah crews collected creel data, Wyoming was responsible for all the aerial creel survey flights, while Utah analyzed all the creel sur- vey data. Electronic car counters were installed at eight major boat ramps in Wyoming and Utah during 1981. The counters were to be used as an alternative method of collecting fishermen use data. The car counts were evaluated against the fishermen use data collected during the 1982 aerial creel survey. RESULTS Analysis of the programmed creel surveys of 1978 and 1982 indicated a har- vest of 155,775 fish in 695,817 man-hours at the rate of 0.22 fish per hour in 1978 and a harvest of 161,526 fish in 670,891 man-hours at a rate of 0.24 fish per hour in 1982 (Tables 12, 13, 14, 15, 16, 17). Data for the years 1979, 1980, and 1981 were obtained through the 6 month (April-September) period. Comparisons (Table 18) through the same period with 1978 and 1982 information show a decline in harvest and creel rate through 1980 and a slight increase in 1981. In all years, rainbow trout were the most common sport fish in the harvest followed by brown and lake trout, although more lake than brown trout have been harvested since 1979 (Table 19). Returns of stocked rainbow and brown trout were low. Returns of rainbow trout ranged from 3.11 percent to 5.61 percent and brown trout from 0.57 percent to 1.79 percent (Table 20). Total weight of the harvest (Table 21) ranged from 121,299 pounds in 1981 to a high of 192,883 pounds in 1982. Return of weight stocked was somewhat better than returns based on numbers. Rainbow trout weights returned ranged from 39.70 percent in 1980 to 72.36 percent in 1978, while brown trout returns ranged from 11.92 percent in 1981 to 112.01 percent during 1978. Fishing pressure and harvest varied among the three areas of the reservoir during 1978 and 1982. Fishing pressure (Table 12 and 13) decreased in the Canyon Area from 1978 to 1982, while pressure increased in the Open Hills from 1978 to 1982. The Inflow Area fishing pressure was substantially lower during both intensively surveyed years than the other two areas, but showed the largest -25-