JESimpson 1938 26. Sonora, Sonora March 20, 1938 Rested this Sunday and watched the Fiesta. Made camp outside town for the night after having learned of the roads from some truck-drivers. A customs official guided us to a secluded spot along the river (Rio Sonora); we there had the first bath since leaving Nogales. March 21, 1938 Left Sonora early in the morning; passed by La Salada (last water until Papago tanks); turned off the "highway" about 45 miles out of Sonora to arrive at early afternoon at: 775+ ft., Tinajas delos Papagos, Sierra Pinacote, Sonora Made camp and investigated the Papago tanks which are natural cisterns in the boulders of a deep wash around which the Papago Indians formerly lived. There are half a dozen or more of these "tanks" of which three hold enough greenish water to serve us as long as we need stay here. As we were told in Sonota (an Arizonan was camping here for a vacation) we found Mr. Robert Lenon, a young mining engineer from Bisby, Arizona (Arizona,'29). He is interested in the craters of the region and knows the desert of this region (Arizona, especially) well. Mr. Lenon moved his coupé to our camp and helped with some directions; an azimuth compass (Brunton's), and fresh food. He is also a good camp-fellow and lending a ready hand any time. "pocket-transit"