. Picturesque America; or, The land we live in. A delineation by pen and pencil of the mountains, rivers, lakes, forests, water-falls, shores, cañons, valleys, cities, and other picturesque features of our country . d Canon. The range ofwhich Mount Washburn is aconspicuous peak seems toform the north wall, or rim,extending nearly east and westacross the Yellowstone, and itis through this portion of therim that the river has cut itschannel, forming the remark-able falls and the still morewonderful canon. The area ofthis basin is about forty milesin length. From the summitof Mount Washburn a bir
. Picturesque America; or, The land we live in. A delineation by pen and pencil of the mountains, rivers, lakes, forests, water-falls, shores, cañons, valleys, cities, and other picturesque features of our country . d Canon. The range ofwhich Mount Washburn is aconspicuous peak seems toform the north wall, or rim,extending nearly east and westacross the Yellowstone, and itis through this portion of therim that the river has cut itschannel, forming the remark-able falls and the still morewonderful canon. The area ofthis basin is about forty milesin length. From the summitof Mount Washburn a birds-eye view of the entire basinmay be obtained, with themountains surrounding it onevery side, without any appar-ent break in the rim. Thisbasin has been called, by sometravellers, the vast crater of anancient volcano. It is proba-ble that during the Pliocene pe-riod the entire country drainedby the sources of the Yellow-stone and the Columbia wasthe scene of as great volcanicactivity as that of any portionof the globe. It might becalled one vast crater, madeup of thousands of smaller vol-canic vents and fissures, out ofwhich the fluid interior of theearth, fragments of rock, andvolcanic dust, were poured in. Wy// ^/>/^- (/t/l/^^ ,^Ae^/^tyi-/vyc:€^7-i.^^ cX-/?^-^^ }J .2w Yo i k. J). A]]]] 1 etoiL 5-_ C o. OUR GREAT NATIONAL PARK. 297 unlimited quantities. Hundreds of tiie nuclei or cores of these volcanic vents are nowremaining, some of them rising to a height of ten thousand to eleven thousand feetabove the sea. Mounts Doane, Langford, Stevenson, and more than a hundred otherpeaks, may be seen from any high point on either side of the basin, each of whichformed a centre of effusion. Indeed, thjg hot springs and geysers of this region, atthe present time, are nothing more than the closing stages of that wonderful periodof volcanic action that began in Tertiary times. In other words, they are the escape-
Size: 1302px × 1918px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, bookpublishernewyo, bookyear1872
