2021-02-05_PERMIT FILE - C1980007A ‎(5)‎

• Permit No: C1980007A
• IBM Index Class Name: Permit File
• Doc Date: 2/5/2021
• Doc Name: SUBSIDENCE EVALUATION
• Section_Exhibit Name: Exhibit 60E Subsidence Evaluation for the South of Divide and Dry Fork Mining Areas
• Media Type: D
• Archive: Yes

Subsidence Evaluation for the
Exhibit 60E Southern Panels, Apache Rocks West, & Sunset Trail Mining Areas Page 8
However, landslide-induced features are related to the geometry of the landslide rather than the
mine geometry. For example, cracks are most common in the upper area of a landslide, whereas,
bulges are most common in the lower area of the slide. This spatial and geometric relationship to
a landslide footprint on steep, unstable slopes, rather than the mine geometry can usually be used
to differentiate between gravity-induced and mine-induced surface features.
831-032.912 Wright Water Engineers, Inc.
December 2020