Advanced Geography . aus. The rainfall on the Colorado pla-teaus is light, because high ranges lieto windward, near the Pacific higher and cooler parts of theplateau receive the most largest rivers in this region arefed by rains and melting snow on theRocky mountains. These plateaus were formed ages ago by the slow uplifting ofgreat blocks of land, many miles long and wide. The surfaces ofsome of the blocks are a mile or a mile and a half above sea level. The edges of the higher blocks form cliffs a thousand or morefeet high. In many places the rocky layers rise one over
Advanced Geography . aus. The rainfall on the Colorado pla-teaus is light, because high ranges lieto windward, near the Pacific higher and cooler parts of theplateau receive the most largest rivers in this region arefed by rains and melting snow on theRocky mountains. These plateaus were formed ages ago by the slow uplifting ofgreat blocks of land, many miles long and wide. The surfaces ofsome of the blocks are a mile or a mile and a half above sea level. The edges of the higher blocks form cliffs a thousand or morefeet high. In many places the rocky layers rise one over another,in broad benches, as shown in a picture on the opposite page. Across these plateau blocks, the Colorado river has cut a great 37 the lavas came are now to be seen. Thesenecks form steep hills, or buttes. Some of the lavas which flowedfrom the volcanoes to the lower landnow form small table-lands, or mesas,— the surrounding surface havingbeen worn away. The Colorado plateaus arevery thinly settled, for most. Lower Colorado. parts of them are dry and barren, or covered with sage-brush. On several of the higher parts and near the
Size: 1960px × 1275px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookaut, bookcentury1800, bookdecade1890, bookidadvancedgeography
