Forest physiography; physiography of the United States and principles of soils in relation to forestry . Fig. 144. — North end of San Mateo Mountains, Trans-Pecos Highlands \l« NUmlo. Shows char-acteristic tree-covered slopes. Mountains composed of rhyolite flows and tuffs. (Gordon, U. Surv.) situations they become increasingly more exuberant in growth. Uponthe slopes and summits of the highest mountains, the Chisos, Davis,Capitan, and Sacramento ranges, a thrifty tree growth of pine and firis found; upon the lower mountains the tree growth becomes morescattered and upon the lowest ran
Forest physiography; physiography of the United States and principles of soils in relation to forestry . Fig. 144. — North end of San Mateo Mountains, Trans-Pecos Highlands \l« NUmlo. Shows char-acteristic tree-covered slopes. Mountains composed of rhyolite flows and tuffs. (Gordon, U. Surv.) situations they become increasingly more exuberant in growth. Uponthe slopes and summits of the highest mountains, the Chisos, Davis,Capitan, and Sacramento ranges, a thrifty tree growth of pine and firis found; upon the lower mountains the tree growth becomes morescattered and upon the lowest ranges no true forests appear. TheBlack range bears a good growth of pine upon its upper slopes; theMagdalena range and San Mateo Mountains have poorer growths of 1 G. B. Richardson, El Paso Folio U. S. Geol. Surv. No. 166, 1909, p. 115. 2 C. E. Dutton, 6th Ann. Rapt. U. S. Geol. Surv., 1885, p. 125. TRANS-^ECOS HIGHLANDS 403
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry
