Figure 2. - Rock-fall Hazard Assessment of Aspen Trail to Betatakin Ruins, Navajo National Monument, Arizona

Rock-fall Hazard Assessment of the Aspen Forest Trail, Navajo National Monument, Arizona

Fig. 2 - Numerous joint discontinuities

Fig. 2 - Numerous joint discontinuities near Sta. 38.5 and site of 1982 rock falls along overhung section of Aspen Forest Trail. Arrows denote joint surfaces (J1, see figure 3) that dip steeply out of the slope.

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