Koford 303 Cynomys ludovicianus October 14,1955 9 mi. N. Waverly, Larimer Co., Colo. At Dec. 13 area found no recent sign. At Dec. 10 I set 16 steel traps, covered, at another burrow. Also set 15 snap traps near burrows to sample marmot population. Dog team has not expanded to E. - no occupied burrows east of section line fence (dogperson thin early this yr.). A few apparently this year's burrows high on slope above old, but those examined apparently not now occupied. Balsam oppositifolia now common green fall, the much less than Sphaeroclea. Saw some Lupinus townsendi. October 15,1955 With Paul Maslant & other men searched for Crotalus at colonies in Dec. 10 & Dec. 23 (Achenvoir), + at (Per Dec. 22). Found no snakes or reptiles. Clear, warm, light breeze. Checked traps at Dec. 10. Took 1 Omychamps (071770) in snap trap near C. L. burrow. Took 3 C.L. (#171, 172,173) in 15 steel traps by 11:20 a.m. Much snow about Sha at Dec. 10 colony. At Dec. 23 some digging of marmot. Arm grew 4+" tall, in scattered thin stand. Population thin, but 19% Aristida, 17% Acantholimon, + Sphaeroclea, Atriplex. 6+" in / A. arctica section fence at SW corner. More vegetation than but little grass. Freshly dug badger hole there - No obvious large expansion colony in that direction. Dogs rather tame at colony. E. slope in NE part of colony. Saw 1 golden eagle near Dec. 10 Colo. October 16,1955. At Section 10 colony, 15 steel traps left same places yesterday held one C.L. (174) and an adult Tapida. Badger in #1 trap held by a large spike at mouth of a burrow, T. de Burrow entrance adjacent ours not badger dug. Saw badger for stomach examination. Took up + traps left.