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<br />I <br />'• Detailed observations of the zones in outcrop or along the top of the cuesta were <br />not made because of snow cover, time constraints and other priorities related to the primary <br />purpose of the project. Observations of the zones in the cliff face suggest vertical apparent <br />1 offsets of stratigraphic units. Horizontal displacements could not be observed. <br />The Deer Trail zone occurs in the western azea of the study area. The intersection <br />of the fault zone with the cliff face is the location of an erosional re-entrant. Extrapolating <br />1 the northwest strike of the zone from the re-entrant puts the zone near the head of southeast- <br />trending drainage that flows past a residence (Figure 3). The zone forms the eastern <br />boundary of a triangle that includes Hazard Zones 1 through 5. <br />1 3.4.1 Potential Hazards <br />1 Available information suggests the zones or interpreted faults are not active and <br />probably they aze not capable of producing earthquakes large enough to produce extensive <br />• ground shaking. Based on the available information, such fault and fault-related hazards aze <br />considered low. <br />In those areas where a high frequency of joints is spatially related to the faults, a <br />potential exists for rock falls and rock toppling, moderate to high flow volumes of water <br />through the joints and an associated increase in the potential for producing debris flows. <br />These local areas are considered moderate hazard zones (Zones la and Sa). <br />J We did not visit the zone at the east end of the area, although we observed it from <br />the road. This area requires additional observational data to assess hazards. The present <br />designation at the east end of Hazard Zone 6 may change from low to moderate hazard if <br />J additional observations indicates that an upgrade is required. <br />1 <br />~• 8 <br />