Roford 170 Cynomys ludovicianus July 6, 1955 N. of Waverly, Larimer Co., Colo. of gully at E. side colony, a few new burrows & much of some Atriplex burrows cut to NW within 20' or so N. of edge. In grit, Cenotia 8" tall cement where Atriplex cut (for food ? rather than reduction height). || Many diggings for onions where sparse Ag. ssp., Atriplex, Cenotia. Diggings to 4' ag. mate. 90% bare groully ground. || Some new burrows under a alongside low Atriplex bush. Saw a young Lepus townsendi run from under edge Atriplex bush; later saw adult on colony, Burrows mainly from 10 to 22 yards apart, farther when a small intervenes. Burrow spacing seems fairly constant regardless of population density & sparsity of forage. || In swale, Ag. ssp. & Astrebla cut. Seed of Ag. ssp. not well formed, not eaten, it seemed. Part are probably green leaf recently eaten (by C. l.? ). || Farther W. along S. fence another concentration (c. 7 in tot. 2 A) near a shallow swale, 4-2 seen S. of fence (where Atriplex 2' tall). Much Ag. ssp. cut in swale, but not Dava. Little Sphaerula present. Mural allium diggings 5 yds. from cement Ag. ssp. leads. || S. of SW corner of fenced sector: there are C. l., where old burrows, & much fresh digging at mounds. Soil rocky of Clay shale prior. 90% bare, 7% slope to E., at most. One little of 4 seen 70 yds. S.W. of corner. (Not over 2 or 3 junts, noticed else- where in colony; seems low little size?). Cover less Cenotia, muchly, Salicola, Ag. ssp., Creogonium; somewhat more seen than N. of fence. Shrub pieces in mounds to 2" across. Farther S. apparently used burrow was 200 yds. SSE of fence corner. Habitat ( +Oz. ssp., Lepus) there being Atriplex 3-6' apart, 1-1 1/2' high, mainly Salicola between (80% bare between shrubs). (this relatively poor for C. l.? ). Apparent Repedonys burrows near