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SOILS AND GEOTECHNICAL IMPACT OF 2017 PROPOSED MOUNTAIN BIKE TRAILS, CRESTED BUTTE MOUNTAIN RESORT, GUNNISON COUNTY, COLORADO

Of the 26 new bike trails proposed, our desktop study showed 2 had some potential risk related to slope stability of known landslides. In response CBMR shifted one trail and deleted the other. In the field visit on Sept. 27-28, 2017 we examined almost all proposed trail alignments near mapped landslides (Trails H, K, M, N, O P, Q, Va, Vb, W, X, Y, and Z).
We concluded that with judicious water management on these new bike trails, they will not result in any additional slope instability, just in the same way that the construction and operation of the existing (much larger) Bike Park on young and old landslide terrane has not triggered instability.