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bottom is on private property and is used for grazing or hay fields. In 1999 the river channel was mapped from RM 63.1 to RM 62.5 for a total of 1.0-km. A 2.7-km reach was electro- fished in 1999, from RM 63.9 to 62.2. In 1998 the surveyed site was less (0.8 km), but a larger section of the river (6.1-km) was electro-fished last year, from RM 66.0 to 62.2. The Duffy site is centered near River Mile 109.5, in the lower part of Little Yampa Canyon (Figure 1). Little Yampa Canyon extends from about RM 105 to RM 121. Here one side of the river is usually on a canyon wall and the BLM is the primary landowner. In some sections large boulders provide instream cover in pool and run habitats. A 2.2-km section of river channel was mapped in 1999, from RM 110.25 to 108.9. The electrofishing station shifted upstream about 0.5 mile in 1999 compared to last year, and was from RM 110.5 to RM 105.5 (8.0 km). It was from RM 109.9 to RM 104.8 (8.1 km) in 1998. This upstream shift was due to the fact that the size of channel surveyed was enlarged both up' and downstream. "\ Flows at Sevens (RM 63) were based on the Maybell gage located at RM 85.8. The Maybell gage has been in continuous operation since May 1, 1916. During the irrigation season, flows recorded at Sevens may be somewhat higher, due to return flows from lands irrigated by the Maybell Canal diverted at RM 89. Flows at Duffy (RM 109) were determined by combining records from the Craig gage (RM 140) with the gage at the confluence of the Williams Fork (RM 127). Peak flow for 1998 was 10,040 cfs and it was 9,980 cfs for 1999, which rank 44th and 39th, respectively for the Maybell gage 84-year period of record. The median peak flow for v~ the, 84 -year period is 10,000 cfs. Prior to 1999 there were four consecutive yearswit1fpeakslEl..~" above the median, indicating the hydrograph in recent years has been in a wetter than normal cycle and the last two years are medial (Figure 2). In contrastto the peak flows, base flows 4