Koford Cynomy s ludovicanus September 29 1955. Nr. Ft. Collins, Colo. near #11; two near #19. The 19 rather evenly distributed over farm area, not more than 2 together. None seen to 5. of possil (cattle frightened them?). At 4:30 p.m. W. 1/4 colony in shadow of mountains. Estimate min. 28 present a colony. No evidence shooting here. Nr. Cheyenne, In Colo. September 21, 1955 Stopped at Terney Ranch of Warren Livestock Co. in Colo. near State line S. of Cheyenne. This so had-quarter ranch of semi Colo. rancher of W.H.S. Co. Talked with Murphy manager there. He said F.W.L. control man had been out twice to supervise prairie dog control works, but still some left. In general C.l. few, due control. Some new colonizer had started, 4 efforts made to kill early. Murphy said some new in poor pasture, some at edge of sheep corals. He agreed that new generally in swales or bottoms while grazing heavy. He said new colonizer had started at least 3 mi. from old known ones. Offind to show no dog towns in mid-October when cattle shipping less pressing. Mostly Byrs gross here, said Murphy & C.l. eat it down to ground. // Scotts Bluff Nat'l Monument, Mr. Leering, Nebraska, visited. Sept. Anderson absent at camp, but said to be very interested in C.l. (old yellow stone man). Secretary there gave me info from files. She said area a monument since about 1919, but not developed until 1935. No grazing since 1935, & probably not since 1919. // A memo from Cabalone had requested yearly map of C.l. towns. Maps made in 1941 & 1942 (about 100 ours in town). I copied these maps on topog. maps. In 1940 not by on a flat (very gentle slope) near gully about 1 mile V.H. 2+8 268