Journal Hafner, M.S. 1979 29 June (cont) 1 km N Bella Unión, Coahuila, México. By sunset (2000) we had 9 Thomomys bottae, 2 of which were alive (for karyotyping). We drove into the se outskirts of Saltillo and ate a very nice dinner. Slept near the trapping locality - windy, warm night. Clear. 30 June 1 km N Bella Unión, Coahuila, México. 0630 arose and checked traps ... 2 more gophers. We processed these specimens and reworked our traps until about 0930. We caught 6 specimens today, 1 of which was alive. Having a total of 15 specimens, we pulled our traps and drove to the nearby town of Arteaga where we searched for boxes to hold the live gophers. We finally found boxes, but these proved to be a headache for the next ±3 days as the gophers would escape each evening in the car necessitating a search of the entire vehicle each morning. 1100 we headed south on Hwy 57 through a few beautiful valleys and, eventually, into the desert. We noted numbers of prairie dogs (Cynomys) in the desert regions. We turned east on Hwy 60 and climbed slowly into the Sierra Madre Oriental. We then turned south on