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September 10, 2024

Rebecca Diehl, University of Vermont, and Jonathan Friedman, Fort Collins Science Center have published a report of model results quantifying effects of potential flow withdrawals on the riverine and riparian resources of the Yampa River in Dinosaur National Monument, Colorado.

The National Park Service (NPS) is charged with maintaining river-related resources and processes for future generations including native fishes and vegetation and their habitats, the river and channel themselves, and the recreational opportunities they provide. Faced with increasing competition for water in the Yampa River Basin and predicted future decreases in runoff, NPS needs quantitative information showing how changes in flow would affect resources.

This report provides information on the potential impact of flow extractions — water withdrawn from rivers for human consumption or use — on the Yampa River in Dinosaur National Monument, and lays out a flow prescription framework that can be used to minimize negative effects. Although all water withdrawals would have negative effects on the river, withdrawals during the spring before the peak are less damaging than those at other times of the year.

Media
a large curving river flows through a canyon
The Yampa River, looking downstream from Mathers Hole, Dinosaur National Monument. NPS resource managers can use this report to develop limits on water extraction from the river. Photo by Joel Sholtes (Colorado Mesa University).
Full Citation: Diehl, RM and Friedman, JM. 2024. Modelling effects of flow withdrawal scenarios on riverine and riparian features of the Yampa River in Dinosaur National Monument. Science Report. NPS/SR—2024/178. National Park Service. Fort Collins, Colorado. https://doi.org/10.36967/2305338 
 
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