Koford 153 Cynomys ludovicianus June 24/1955 Nr. Ft. Collins, Colo. blades & stubs Bow grass, cut & left on ground—as many as 10/sq. ft. 10 N. of #19, many stalks Brownie, Nordeim, Bow. grass, cut & lying on ground. (Clipping increases vigor Buechler, Bow. grass, Ag. am.,) & nearly all left on ground as litter, so effect grazing not as great as rotted/stalks eaten. C.L. in minor litter. /1/ near burrow 8" deep: 5 yds. NE of #19; under 5" drain. soils, in area 50% bare ground, + Buechler, Salsola. Some small Salsola uprooted rather than cut. /1/ Near N. center colony, much Nordeim, Brownie cut. Buechler stubs stalks about 4" tall now. Salsola cut at same rate, 1/3" to 3/4" parts sometimes cut. On bed of dry pond, Salsola is 90% of vegetation. At periphery many stalks cut. At sites where 6" tall, about 8 stalks per sq. ft. cut, 15/sq. ft. where thick 4-10-12" tall. /1/ Burrows on pond bed (#7, 36) show little use, but much Salsola cut there when 30% ground bare + little but Salsola present. /1/ SW NE 1/4, much Salsola 8" tall, but only 1 C.L. seen there. No evidence recent activity near #24 or N. of it. Much Salsola cut vicinity #8, 9, 10. Many stalks A. am. cut & lying down. When 8" tall, up to 15/sq. ft. 5 yds. W. of #10. Buechler about 20% cover in this area. /1/ S. of fence, relatively very little Salsola. Some grazing here this year (not N. of fence). About 90% Buechler, some Spherules in bloom. St & Panicum not thick, but common. Many Ag. am. culms pulled as stalks cut; + some Bow. grass, too. Apparently little recent activity on slope on E. side, or no fresh scratchings, spider webs in burrow (block widow). /1/ On steeper slope in S. central part colony, more Bow. grass. (Bee, da, or flatter), Much A. am., cut & left—this dry grass conspicuous as green, 4 follows determinator area C.L. activity by inspector's grounds. /1/ Made overlay of map showing limits activity + location when C.L. seen.