Stakeholders in the Yampa and White Watersheds in northwest Colorado expressed interest in quantifying the flows needed to sustain conservation and recreation values associated with streams and rivers.  Several long-standing methods exist for quantifying water needs, but these methods are typically focused on individual river segments, primarily oriented toward fish, and often expensive to implement, making it cost-prohibitive to apply them across all streams and rivers in a watershed.  The Watershed Flow Evaluation Tool (WFET) was developed to fill the need for a broadly applicable assessment of flow-related conservation and recreation attributes.  The WFET was developed using the Ecological Limits of Hydrologic Alteration (ELOHA) framework (Poff et al. 2010).  This study provides a regional framework for understanding flow-related ecological risk for environmental attributes and establishes a baseline for recreational flow needs in the Yampa and White Watersheds.