J. Rodgers-1939 150 Itinerary, etc. May 13 Arroyo Macks. 750 ft, 6t mi SE Livermore Alameda Co, Calif 8 feet above the present river bed. There is the remains of another terrace about 18 feet above that. The whole area is covered with short dry grass. These are scattered blue sage especially on the upper terrace and along its slope; some valley sage and near the stream bed and sycamores along it. About 11:20 some big dark clouds moved down from the southeast, there were a few rolls of thunder and rain more or less continuously and very hard for a little over an hour. The clouds were just over Arroyo Macks; as they drifted out toward the Livermore Valley, they melted. About 15 minutes after the rain stopped, we saw Leelpone and about 1 hour after it stopped the ground was nearly dry and at that time we caught a large whiptail in the creek bed. Miller saw a skink and caught only the end of its tail as it went into a hole at the base of a large leaning valley oak. There were no mostly loose boulders rocks barred by but many within 150 feet no autotrope.