MODFLOW-NWT groundwater flow model used to evaluate conditions in the Northern High Plains Aquifer in Colorado, Kansas, Nebraska, South Dakota, and Wyoming: U.S. Geological Survey data release
A three-dimensional groundwater flow model was developed to characterize groundwater resources and the 
interaction of groundwater with streams and other hydrologic features in the Northern High Plains aquifer. 
The Northern High Plains aquifer is generally unconfined; most of the water withdrawn from the aquifer is …