TROCHET, J. 1991 Journal 45. Simon Canyon Natural Area BLM adjacent to Navajo Dam State Park, San Juan County, New Mexico, Elevation feet. July 3-6 crude map: (ends) SIMON CANYON UPLAND N UPLAND INTERMITTENT STREAM 1/4 MILE RIPARIAN W OODLAND NET SITES DIRT ROAD FROM NM HWY 173 (3 MILES TO SW) CAMP SAN JUAN RIVER UPLAND NAVAJO DAM (ABOUT 1 1/2 MILES) NM HWY 511 The habitat at Simon Canyon is basically canyon riparian. Simon Canyon itself is a NNW-trending canyon as it leaves the canyon of the San Juan River. The immediate canyon walls are 15-40' high, but the visible pinrock back from the stream channel is about 100-125' high. Surface water is intermittent, flowing in only a few places, standing in many more, and apparent only in the lower half mile (I walked about a mile up from the San Juan River). The riparian vegetation quickly thins out above this point. In the canyon, Ceanothus leucopetals and Fremont Cottonwoods are the only trees, mostly 25- 40' trees, 8-20