LoFord Cynomys ludovicianus September 15, 1955 NW Weld Co., Colo. Jeni says c.l. had eaten down to bare ground (winter), area of weed lumours about 70 yds. diameter. Visited them: V.W. Mcintosh (S.14, T9N, R64W). His father, old settler M.L. Mc, lives across road (a ¼ section town just W. of his home; moved last year). V. Mc. said a few lumours dug near center Dec.14. Buried by brush but some survived, grazed this summer. I visited the site. Silt-loam soil, 2% N. slope, blue grama pasture (50% rest cover), A milo field adjacent to N. now. In a 50' drain, area where sod gone & weedy ground a few "below rod level," one 4 well developed craton. Weeds: Sis., E. phaenolepis, Chno. all., Verb. bract., Xanthium (lumns grew), Amars. delt., Dys. poppy, Salvia asteraten. 2 other lumours 60-80 yds. upslope, two roe (c.l.? ) 100 yds. from main group (in lowest area pasture), 41 hide 20 yds. from main group, at least two Speotyts present (also at Lawrence). Diggings suggested many Cet.13-levistius here too, using old lumours & nearby bare spots. Their spot evidently an invasion of typical spot (but Bgn., not Bda pasture; due light soil?) from at least ¾ mile distance. (Brother town ¼ mile S. of windmill, 4 in NW corner S.25 (T9N, R64W). This apparently old, new coming locale. Located along bottom & swales of thick Bgn.-Bda on slopes up to nearly 13 70 grade. Moderate population now. Soil silt-loam, barely enough clay to pack hard when dry at rim mounds, & generally loose. Cattle grazing here now. Bottom green, luable, with isolated tall Organum & Cerinum plants. Bottom may 50 yds. wide. Nearly all lumours within 50 yds. of edge bottom or bottom of swales. Mod. Opuntia here. Speotyts seen. Four groups