Trachet J. 1992 Journal Ugita Ridgway, Big Bend Ravel State Park Site, Presidio Co., Texas. Elevation 3850 ft. May 22-27 Creek; 50-100 yards on the N. The creek gradient below the falls is gentle, (cr'te) the general bed up more than 40' wide in the lower (or wider) part. On the (through from too foles) upstream portion, much of the creek flows in over and around large boulders. The boulder fall appears to have come from the south walls of the canyon, where there is a steep slope and some boulders arrested there. Vegetation on the leadwall is mostly vine-like shrubs of box elder & wirdehain spurs, the latter especially dense in grottoes on the N. side of the falls. There is a rose thicker on the S. side of the falls. Among the many small to mid size hardwood trees are a few Chye (to 45') wildino, some Chinese Tallow (25-30), small hackberry and autumn tree & Cr'd l.d. Against the N. wall just a bit downstream from the falls are a few fruiting mulberry trees. Some living willows are prostrate on the creek bed. There are crowned c grapes, as are some of the vines & shrubs along the N. wall. Movement through the boulder-strewn creek bottom for 100 yds below the falls is difficult. The boulder fall has led to some cut-over wood growing at odd angles (willows, too); many of these are medium size trees, but some are 24" dbh or more. On the lower part of the boulder fall area, wirdeis predominate and there are carpets of grapes going up both walls. The box elder doesn't seem to occur below the boulders. The canyon rims are about 100 yds apart here and the slopes are steep right to the canyon from (2x. steeper on N. side). On the S. side as I mentioned above is a small outwash of desert vegetation: prickly pear, sotilla & gucca are visible. Otherwise the desert is little in evidence. In this lower boulder area are two other trees not found above; one looks like walnut, the other bears a large 3-petal and pet & 7-9 leaflets per leaf - I don't know what it is. Butterbush grows commonly right along the watercourse from here down to the end of the wet strip near the bottom of the boulder area to the south