TROCHET, JOHN 1989 Journal Juní Sabin Reservoir McKinley Cr. New Mexico July 29 flanks the Juní Mountains on their W. side all the way to Gallup. (cont) The overflow of Nutria Diversion Reservoir is actually cut through the rock of the Hogback. The impoundment has an areal extent of about 2 hectares, a greatest depth of about 12 feet and is mostly quite shallow. Opposite the dam is an extensive cattail bullrush marsh, which extends about 50-70 yards above the reservoir along the 12-15' palin creek, where it is replaced by a meandering line of willows that run more or less continuously 600 yards to the mouth of Nutria Canyon. Here and the grassy margins of the creek are cropped regularly by cattle & sheep. Below the dam is a nice riparian plot dominated by three very large cottonwoods, which appear to be hybrids between the narrow leaf cottonwoods of Nutria Canyon and the broadleaf cottonwoods of farther below in the Nutria Valley. Below these are two types of willows growing in dense stands south of N. of its outflow channel into the hogback. Surrounding the willows are several tall stands of herbaceous growth, dominated this season by cocklebur (this varies from year to year). The willows extend downstream for 200 yards but are taller than the depth of the cut of the arroyo only just below the dam. crude map of Nutria Diversion Reservoir area: [illegible] TO VILLAGES OF UPPER & LOWER NUTRIA <-- AGRICULTURAL FIELDS 3 LARGE COTTONWOODS WILLow-TALL PHREATIC Río NUTRIA HOGBACK GRAVEL DAM ROAD NUTRIA DIVERSION RESERVOIR MARSH WILLow TO NUTRIA CANYON N