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4. The wetlands areas and artifacts thereon should he <br /> left intact. <br /> 5. Other structures, i_e the old mill, boardinghouse <br /> foundations, tram tower etc should be undisturbed. <br /> 6. Donation of site to county or other entity may assist <br /> in long term preservation of historic and recreational <br /> values. <br /> 4. KOHLER -- LONGFELLOW PROJECT <br /> a. Historic & Cultural Value <br /> The above site contains two mines, the Kohler Tunnel, and the <br /> Longfellow Shaft. The Longfellow is considered significant <br /> due to the existing shaft buildings. very few shaft buildings <br /> exist in the county, and these are well preserved. <br /> There is a frame building on the Kohler dump. While somewhat <br /> intact, it is a simple frame building and offers no special <br /> historic or architectural significance, though it is one of a <br /> limited number of such structures still existent. <br /> Both sites have high interpretive value due to their location <br /> to US Highway 550. The site was not deemed significant by the <br /> SHPO. <br /> b. Environmental Benefits of Remediati.ona <br /> This site has been estimated to contribute a substantial <br /> proportion of metal loading to Mineral creek, from both dump <br /> seeps and portal discharges, primarily from the Kohler. Clean <br /> water from behind the Longfellow is becoming contaminated by <br /> pausing through the dump. Remediation efforts here are likely <br /> to have a significant positive environmental benefit on the <br /> upper Animas Basin and down stream. . <br /> c. Recommendations: <br /> The committee considers that the Kohler portion of this site <br /> has relatively low historic significance, but the Longfellow <br /> portion has a high significance. Re-mediation has potential <br /> for high environmental benefit particularly at the Kohler. <br /> The committee notes the applicant does not plan to remove the <br /> Longfellow shaft buildings and such preservation should be <br /> recommended. Sunnyside is tentatively planning to move much <br /> of the Longfellow Dump but notes that other options for <br /> hydrologic controls may also achieve cleanup coals. The <br /> - committee recommends trying hydrologic diversion type <br /> controls and capping the dump in place to achieve <br /> environmental. goals. Again the dump forms an integral part <br /> of the mine's significance and is better left in place. <br />