Koford 16+ 211 Cynomys ludovicianus July 30, 1955 E. Wyoming of draw (poxin was effective there?). On 20% slope at side of bottom, among hedged Artemisia tridentata bushes, many digging to 10" depth in fine sandy loam (for?). Carex, Eriodictyon, Stipa present, but 80-90% bare. Some mesa on upper gentle slope surrounded by arrangement of thick Artemisia. Much Pl. spic. in area below when much Carex filif. (stripes). In gully, 40% cover attracted. On upper slope Art. tridentat. hedged to 6" height (by sheep?). Are. min. spec. ring lurnour halfway up slope = 13 yds. (10 spaces), Same 18" thick, 6' drain. Took color photo area. Larimer G. G\o August 3, 1955 with Harold Swopes (Gone & Froh, Ft. Collins) and Ken- ny Milgard, pilot, flew low over plains of NE Larimer Co., Col., to (count antelope and) photograph C.l. towns. Because little greass, lurnour not conspicuous, but color could be seen easily from 200 ft. altitude. Beside the Dec. 10 town, photo- town in Dec. 23, 4 another apparently in Dec. 3 (T11N,R. 69W), 4 other near Tony Roman's (5.16,T11N,R68W). We saw and roost of ground in about 3 townships (and saw 100+ ant- lope in all) but found no other C.l. towns. Many Pogon- mounds & clearings, however, this often conspicuous in green greass; in ploughed fields; also conspicuous because of different vegetation around ant clearing Land surface in general not uni- form, but small diffs in vegetation noticed even nearly flat surfaces. Many low "pimple" mounds in this region. August 4, 1955 Nr. Wellington, Larimer G. Brief visit to Wellington colony. No septemera at all to N, whe- re farther lurnour marked last spring. This area thick Koch- sia & stripely bushes (would main part colony be same with -