Mr. Alvarez showed us the road to Rancho de Cielo & also drew us a map which is here included with additions by me. Photos on the way: (1.) Pictures of The Thorn Scrub 108 km N. of Cd. Victoria. Looking east. (2.) Pictures of the Lowlands from the lava outflow just south of the Tropic of Cancer, Volcanic plus, part of lava flow & coastal plain. Sierra to my back. looking east. Walked part way down the Rancho del Cielo Rd. until it got dark & then returned for a light dinner out of cans, a couple of beers and then to bed around 11 PM. Saw saw & snot at a large brown lizard on our walk down the path but did not get him. Impressions along the drive south. Matamoros is a dump and the road south of there is bad. The vegetation is similar to that around Brownsville - this is largely semi green acacia. Further South there is dry gray thorn forest on a fairly flat plain. This becomes slightly more rolling with a couple of areas of hills but then flattens out again before Cd. Victoria. The Sierra really jumps rises abruptly from the coastal plain at Cd. Victoria, South of Cd.