Koford 1453 Cypronyx ludovicianus March 6, 1955 N. Harmer & Co., Colo. Burrows also in succession had been bored out by Tropidia. I saw 3 within a few minutes in another part of town. The present prairie dog in NW part of burrow area but rather sparsely distributed. I shot 2 AD, one of which was at burrow mouth with another dog. No coyote droppings seen. Roman had only sheep man (cattle two until a year ago) + disliked coyotes + eagle both. He thought the active group I saw had been prowled by Warner Livestock Co. which had some sheep here. || Soil has red gravel intermixed & approximately 90% of surface some areas, but can be dug with hand. (Water cores of packed soil with little rocks (but some grass) above adobe-like a have stood up like chimney up after winter parts moved weathered away.) || The ants Pogonomyrmex seem to build up burrow mounds about 20 ft. across + 1 ft. their own long period, & then capped with dome saucer-shaped depression with a core of fine gravel in center. Many old mounds had ant mounds on them, but apparently old C.L. mounds ideal for ants to make nest atop. || Grass cover with spaces a few to several inches between tufts. Mostly Bouteloua gracilis; but also Buchloe, Aristida, & another shot (= mullein? ) soft grass. Part of active colony + recently dead colony in area at tripled concourse. This browsed but 2-3' high still. Some burrows at base at tripley. Most activity now outside this area, W. of milebld. || Vistich reported group later. Secs. 12+ 13, T 10N, R 69W (1 mi. SSE of Rudy Silvernair). Many large ant mounds this area but saw 3 burrows 50-100 yds. S. road + 2 to N. (is this all? from where?). Most of these on the low wide part mounds. Droppings appeared recent the day.