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". compared to above, while the river immediately above the dam in slowed and deepened because of the dam. A telemetry tower was placed near the diversion dam to monitor fish movements because it is believed fish passage at low flows could be a concern. Cross sectional profiles were not done in this stratum because this reach is very short and it is not typical of the river in general. Stratum 8 begins at RM 91.6 and ends at the town of Craig, CO at RM 135. In this stratum the valley is more confined than in Strata 6. Between RM 91.6 and RM 105.0 the valley is wide enough for hay fields and pastures adjacent to the river. The river reach between RM 105 and RM 126 is the Little Yampa Canyon management unit. Most of the river bottom in this reach owned by the BLM is confined but the valley floor is wide enough for a flood plain. A fairly large portion of the river in Little Yampa Canyon is on private property. The Williams Fork is the only major tributary to enter the river above Cross Mountain and its confluence is at RM 129. HISTORIC HYDROLOGY Peak flow typically occurs in early June and minimum flows in early September (Figure 2). The hydrographs on Figure 2 represent the 90%, 80%, 50%, 20% and 10% exceedence flows for 81 years of flow records for the Maybell gage and indicate the frequency that a flow will exceed that value. For example, in one out often years flows have exceeded the 10% curve. Mean total annual runoff for the Maybell gage, from 1916 to 1997, is 1.13 million-acre feet (MAF). In both 1996 and 1997 annual runoff volumes were above average. The annual runoff for 1996 was 1.57 MAF and it was 1.88 MAF for 1997. Bankfull flow, defined as the channel forming flow, typically has a recurrence interval of about 1.5 years (Gordon et aI1992). The 1.5 year peak flow on the Yampa River at 4