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Post -Mining Topography <br />Mining operations at NHN will be performed using trucks, shovels and dozers. The postmining <br />topography was estimated based upon a 15% swell factor. Map 2.05.4-1 shows the post -mining <br />topography which is similar to the existing topography. Cross-section locations and typical <br />cross-sections through the mining areas are also shown on this map. These cross sections show <br />original and postmining ground elevations. <br />Slides and Other Damage <br />NHN does not anticipate any problems with slides at mine during the term of mining and <br />reclamation activities. <br />Postmining Drainage Channels <br />Two primary drainage channels pass through the NHN permit area, Nygren Draw and Meehan <br />Draw (see Map 2.04.7-1). However, no mining will occur in these drainage channels. <br />Section 2.05.4(2)(c) Page 3 October 2018 (TR -18) <br />