Borell 1964 (Ojo Sagura), San Lorenzo, 5000 ftel. Rio Santa Clara Chihuahua Mex. June May 1st. Continued river from San Lorenzo. They got this gun and managed to kill one. It proved to be mule deer spite buck. He said it was large enough to be a real load for four men to carry to the car. He said it was excellent eating, also Mr. Siemens said that last winter (1962-63) the natives of the village killed a black bear in the river bottom near San Lorenzo. Mr. Siemens told us that this river at San Lorenzo flows throughout the year. He said that permanent flow comes from springs near Santa Clara, 40 miles above San Lorenzo. Also he said that following thunder storms in caste summer the Santa Clara flows from bank to bank. Apparently the climate is milder along the Santa Clara than here at least the mesquites appeared to be more nearly in full leaf - but we saw no blossoms.