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<br />to National Register criteria, determine level of direct impact to each site, and develop a <br />mitigation plan. <br /> <br />Fry-Ark System Re-Operation <br /> <br />1,4'1{ITh F ArkS R . '11 '1' .. C '1" T . Lak T . <br />. e ry- ystem e-operatlon WI uu Ize eXlstmg storage laCI ltles at urquOlse e, wm <br />Lakes and Pueblo Reservoir. No physical changes will be made within these three areas. <br /> <br />As stated above, only 23 acres of the Turquoise Lake study area have been inventoried. All of <br />the approximately 4,000 acres at Twin Lakes have been inventoried by the fifteen projects that <br />have occurred in the area. A portion of the Pueblo Reservoir study area has been subjected to a <br />cultural resource inventory. Unfortunately, the specific location of inventory is known only for <br />190 acres. It is unlikely the 1964 and 1965 inventories of the area covered the entire 12,740 acres <br />included in the area by the Bureau of Reclamation. <br /> <br />A total of 234 sites have been recorded in the three study areas included in this alternative. <br />Seventy-three are prehistoric, 31 are historic, and 33 contain both historic and prehistoric <br />components. One hundred seventy of these sites are minimally recorded. Two sites are listed on <br />the National Register of Historic Places, one has been officially determined eligible for the <br />NRHP, one officially requires data to make a determination of eligibility. and one site has been <br />officially determined not eligible to the NRHP. All sites with official determinations are located <br />within the Twin Lakes study area. <br /> <br />Two unrecorded ditches exist in areas affected by the Fry-Ark System Re-Operation. One of <br />these ditches, the Arkansas Valley Conduit, is undoubtedly eligible to the NRHP if it has <br />physical integrity. <br /> <br />No additional impact will occur as a result of the Fry-Ark System Re-Operation. Since no sites <br />will be affected by this alternative and no lands not affected by previous actions will be <br />impacted. this alternative is assigned a rank of 10. No further work is required if this alternative <br />is selected. <br /> <br />Pueblo Reservoir Enlargement <br /> <br />The enlargement of Pueblo Reservoir is an alternative for additional water storage. The dam <br />would be raised 5 or II feet, which would increase water storage approximately 30,000 to 75,000 <br />acre feet. The largest of these alternatives will raise the spillway 12 feet to 4910.9 feet in <br />elevation and the top of the dam to 4929 feet. hnpacts to cultural resources will occur as a result <br />of increased water level, dam construction, infrastructure modification or relocation (roads, <br />railroad tracks, structures, and utilities), and modification or relocation of recreational facilities. <br /> <br />The Bureau of Reclamation includes approximately 12,740 acres in the Pueblo Reservoir area. <br />About 15,760 acres have been included in the files search area, which overlaps the Bureau of <br />Reclamation area in some areas and does not cover it entirely in others. <br /> <br />~ <br /> <br />9 <br /> <br />Cultural Issues <br /> <br />- <br />