Koford 169 Cynomys ludovicianus July 6, 1955 N. of Waverly, Larimer Co., Colo. of slightly lawn, flat area where water had stood, & which had good growth of about Bouteloua gracilis. Near wounds 80% bare ground, some Cenotia & Og. smithii. || None in about 2 A. where pithly poppy dominant & many Pogonopyrum mounds, slope 1-2% to estimated 2%. None in area of Atriplex ram. 1½" tall, bunch- 2-10' apart, Dalsola dominant between, but much bare ground. Here 4 at many sites in other parts colony, apparent Cynomys dig- gings 2-3" deeps, Near diggings Bouteloua and Stellaria 10-12" tall not cut. Water had stood here (reason no c.l.?). Diggings up to 4/ sq. yd. 2/3 of 12" shoots of one Atriplex bunch cut. 0 punctia in flower but not eaten. This Atriplex area about 6A at SE pradige colony. Total colony about 12-0 A. estimated. | In screening 5, slope up to 5%., in areas of at least 10 acres, only 12 c.l. seen. Several expert 70-90 bare (actually more) || In prep area about 2 A. seen 6. fewer near shallow ravels, 3/one seen, including jears (3 or 4). In this area much cutting Atriplex + moderate amount of a purple-flowered Astragalus, especially seed-bearing stalks about 1 ft. high. Few seeds much Iva xiphiloides & Og. amm. Burmans occupied c.l. seen were 50+ yds. from ravels. Much A. 2m. cut down & left on ground. Burmurs on gravelly loam on higher ground near ravels (evidence standing water, mud). Near this site, To S. of fence row seen; then Atriplex 1½-2', & all ground had been muddy. Many shallow diggings in nearly barren soil, & bushes of allium left at site. At least 20 such diggings in half an acre. Some holes to 6" deep. Little evidence but stock, tho a few old footprints cattle in mud, no new drops pig's cattle seen. No any carnivore scats! || At W. edge