$USGT Basin and Range normal faulting truncates all rock units on the eastern edge of the study area. The offset along this fault is recent, and displaces alluvial deposits to the east. No other faulting is clearly distinguishable within the hornfels and quartzite units. A prominent joint system having a west-northwest strike with near-vertical dip is present. In some instances, stream drainages have developed along these joints. No offset is observed, although some rock units, most notably the quartzite unit, seem truncated by these structures. No fault gouge or slickensides have been observed in association with these joints.