Mike S. Rogers 1980 Journal 12 September cont. rocks and pebbles. Much large grained sand with some layers of clay. The burrow at this point was ca. 9 cm. below the surface. A rock was also turned near this area and a large burrow was uncovered. The soil here was much more friable and I assumed this area would be the animal's food cache area and den. Collected the specimen after 20 minutes in the gravelly-sandy runway. The animals was already dead and beginning to stiffen, so I assume he was taken within 10 minutes of setting the trap. Locality is Santa Dominguito, 15.1 mi's (by road) Puerta Pieta. 1640 hrs. We stopped at Puerta Pieta and excavated several gopher burrows but were unable to collected any animals. 2310 hrs. Arrived at border crossing south of San Diego. Prepared all material while driving, except a Spermophilus shot by RS in San Agavico. 2340 hrs. We able to cross border and declare specimens without difficulty. Rented a room at Motel 8. 13 September 800 hrs left for Berkeley. 1650 hrs Arrived Berkeley and unload equipment.