Koford 20 Cynomys ludovicianus January 19, 1955 W. Weld Co., Colorado. Had been paired 3 or 4 times in past. Each time a few survived, it seemed, as yet had not eroded to W. of creeks bottom (dry now). Much snow but mounds clean. I saw Lepus townsendi but no trocha Cynomys. Bobore still present. Lawrence leaves 5 W. 1/4 of Sec. 22 when there is colony but he did not know about it. Land is turned over to association farmers. He was willing to let this go until I was finished with study. Dave Crowell of Brush apparently does all poisoning in Weld Co. (Fish & Wildlife Service). Cold wind by 4 p.m. near Nunn. / Acos said he had head of colony near Antelope Willaman Pierce (N.W. of?). / In the evening I talked with Norton Miner of Ft. Collins. He was Fish & Wildlife man who trapped predators & poisoned rodents for last 2 years. People wishing control notified Co. Agricultural Agent (Don Mc Millen) who notified Miner. Part of funds from S.C.S. W.J. Kremes (now lives Yr mi. N. of Ted's Place (9t mi. NW of Ft. Collins) has been leader in starting vigorous C.L. control in 1951. Robert preceded Miner as the pioneer. Miner gave me a list of people who had complained about C.L. 1953-54. He showed me on Larim Co. maps areas having dog towns in '54. Towns ranged from Longmont to Wyoming line. Largest colonies near road to Laramee between Deer Dief- man Butte & Virginia Dale. There about a section in area. Many or Warren Live Stock Co. land in NE corner of county. Colonies N. 4 mi E. side of reservoir 5 mi. NNW of Waverly. A good colony on E. side of ridge on E. side road