Dalles of Wisconsin River Stereoview Keystone View Co. 1900s Geological For Sale

This antique stereoview card from the renowned Keystone View Company presents a fascinating geological scene titled \"Leaping Chasm Between Cliffs Sculptured by Prehistoric Streams, Dalles of the Wisconsin River.\" The stereograph captures a dramatic moment with a man mid-leap between two impressive, distinct sandstone cliffs, set within a densely wooded landscape. This 3D view vividly illustrates the unique natural formations shaped by ancient geological processes and highlights the striking contrast between the human figure and the monumental rock structures. The detailed black and white imagery is characteristic of early 20th-century stereoscopic photography, offering an immersive glimpse into the natural wonders of the United States.The reverse side of this Keystone View Company stereoview provides extensive educational information under the heading \"DALLES OF THE WISCONSIN RIVER.\" It explains that the area, near Kilbourn in southwestern Wisconsin, reveals a prehistoric stream much larger than the current Wisconsin River. The text details how extensive erosion and weathered sandstone formation created the unique landscape, with hills of sandstone rising abruptly, and \"extraordinary, monument-shaped mass stands quite separated from the cliff at the right though both are living rock, connected at the base.\" It further describes \"curiously picturesque shapes; some, like this Stand Rock, were once islands in a rushing river; some, like that overhanging shelf ahead, were capes and promontories along the river bank.\" The cutting and rasping action of immense sheets of glacier ice contributed to the sculpturing of the friable sandstone. The card clarifies that \"Dalles\" is a French term describing the rapid flow of water over smooth rock surfaces between volcanic rocks, emphasizing the scientific and natural beauty of this region. This stereoview, identified by numbers T118 and 26507, is a historical document copyrighted by The Keystone View Company, offering a detailed look at a significant American landscape.