Page:The National Geographic Magazine Vol 16 1905.djvu/433

This page needs to be proofread.
The National Geographic Magazine

THE CENTRAL GREAT PLAINS

THE United States Geological Survey has for a number of years been studying the underground waters which are flowing hundreds of feet beneath the surface in many sections of the Central Great Plains, including the greater portions of South Dakota, Nebraska, and Kansas and the eastern portion of Colorado and of Wyoming, an area of about one-half million square miles. In order that we may make the best possible use of the underground " rivers " which it it is believed flow perhaps continuously for some hundreds of miles, it is necessary to understand the structure and stratigraphy of the water-bearing formations.

The question of water supply, both overground and underground, is one of great interest to the people in this district, and although considerable progress

From N. H. Darton, U. S. Geological Survey

Artesian Well at Woonsocket, South Dakota This well throws a 3-inch stream to a height of 97 feet

This article is issued from Wikisource. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.