Assessment of the Impact of Reduced Stream Flows on Ground Water Recharge
and Spring Discharge in the Little Snake River Drainage Basin, Wyoming
The objective of this investigation was to assess the impacts on ground water systems in the upper
part of the Little Snake River Basin that result from diversion of water from tributaries to the
Little Snake River by Cheyenne Stage I and II diversion system. The location of the project area
is shown on Figure 1.
The methods used to carry out this phase of the study included (1) an assessment of the hydraulic
interconnection between teh impacted streams and the sedimentary rocks comprising their beds,
(2) visual observation of stream flows in the tributaries below the diversion system periodically
during 1991, and (3) correlation of the stratigraphy between the upper Little Snake Basin and Dixon,
Wyoming, in order to determine if there is good hydraulic communication betweeen these locations
within the ground water system.
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