. American forestry. Forests and forestry. EXTINCT VOLCANOES OF NORTHEAST NEW MEXICO 359. CAPULIN MOUNTAIN, AN EXTINCT OF RECENT ORIGIN, NEAR FOLSOM, N. M., AS SEEN FROM THE TOP OF A NEIGHBORING VOLCANIC PEAK FIVE MILES AWAY. THE CINDER CONE RISES NEARLY 1,500 FEET ABOVE THE PLAIN. periods will be recognized when the region is studied in detail. Three peri- ods are well illustrated in the canyon of the Dry Cimarron, where the rim of the canyon consists of lava belonging to one of the ancient sheets. This .sheet was eroded and the canyon cut down nearly to its present depth when a Rood
. American forestry. Forests and forestry. EXTINCT VOLCANOES OF NORTHEAST NEW MEXICO 359. CAPULIN MOUNTAIN, AN EXTINCT OF RECENT ORIGIN, NEAR FOLSOM, N. M., AS SEEN FROM THE TOP OF A NEIGHBORING VOLCANIC PEAK FIVE MILES AWAY. THE CINDER CONE RISES NEARLY 1,500 FEET ABOVE THE PLAIN. periods will be recognized when the region is studied in detail. Three peri- ods are well illustrated in the canyon of the Dry Cimarron, where the rim of the canyon consists of lava belonging to one of the ancient sheets. This .sheet was eroded and the canyon cut down nearly to its present depth when a Rood of lava was poured into it probably from the crater of Mount Emery, an extinct volcano standing about a mile south of the Cimarron. The sheet thus formed within the canyon was later partly eroded away. The bed of the canyon was lowered slightly below its present level when a great stream of lava, presumably from Capulin, flowed down the canyon for a distance of about 27 miles filling the stream bed and overflowing it in some places, spreading to the confining walls of the canyon. The surface of this youngest lava constitutes the present floor of the canyon. Just as there are three conspicuous and well-defined periods of lava flow in this region, so are there three dis- tinct groups of extinct volcanoes which correspond in time, in a general way, to the lava flows. The oldest is repre- sented by Sierra Grande which is the only one of this group known to the writer; the second, by Robinson, Emery, and half a dozen unnamed peaks; and the youngest group by Cap- ulin, the Horseshoe, and a large but undetermined number of volcanic cones of recent origin. THE SIERRA Grande: Sierra Grande forms one of the most conspicuous geographic features of the volcanic region of northeastern New Mexico. It is a conical mountain of volcanic origin, about 10 miles south of Folsom, New Mexico, standing. Please note that these images are extracted from scanned page images that may have been digitally
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
