Laserfiche WebLink
Subsidence and Geologic Fleld ObservaUOns <br />Apache Rocks and Box Canyon Mur~ng Areas <br />July 12-t5. 21X14 <br />4.3.7 Location 16 <br />Northwestward view of a landslide, located north of Minnesota Reservoir and a few hundred leer <br />cast of the rescrvou dam, <br />~' f~ 1N.~ J ~ .~ ~ 4 <br />r" ..yt. <br />r <br />f ~ <br />Figure 20. \crthxast+.artl ~aew a iandso~e across hLnnesota Reservoir. The landslide appears the <br />same as last yeas The reservoir dam is lust out of vrew at the left of the nnage <br />The hummocky landslide terrain appc:us to be the same as was observed during last two years. <br />historically the slide only moves during periods of increased precipitation, such as in the mid <br />I980s and mid 199Us. The last movement nn this landslide was observed in 1997. <br />The !ovc! of Jlinncsota Rescn air Is higher than it has txcn fbr several years. <br />4.4 Subsidence Observations and Evaluations Regarding Landslides and <br />Rockfalls in the Apache Rocks and Box Canyon Mining Area for July 14 and 15, <br />2004 <br />Observations were made from three obsen•ation poinu: I) Location 17 north of Apache Rocks, <br />2) Locution I8 from the Well Plmimn access rood 3) L(K:UIIOII 19 from the frontage rood on the <br />north side of the North fork, and J) tiom vertical aerial photographs (Figure ZI ). <br />831-032.E•t0 Wrght Waler Engineers, Inc. Page 37 <br />SaDtembor 200a <br />