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J CRAPTERTHREE Atfecte~d Emlironment These surveys have resulted in the discovery and recordation of 48 prehistoric sites, five historic sites, 45 prehistoric isolated finds, and two isolated fossil bone localities. The types of sites recorded during the survey of the Piceance Site included prehistoric open camps, open lithic, sheltered camps and open azchitectural sites, and historical drifr fences and a dugout. The isolated finds are ineligible for the National Register of Historic Places (NRHP) ;rccording to the criteria at 36 CFR 60.4, and so ate the five historic sites. Of the 48 prehistoric sides, seven have been recommended as eligible for the NR1iP, 27 have been recommended as ineligible, and additional data are required in order to determine the NRHP status of the remaining 14. Generally, sites were recommended as eligible because they demonstrated the potential to yield significant information on the prehistory of the region. Concerning paleontological resources, the surface formation exposed in the Piceance Site azea is the Uinta Formation. In the Piceance Basin, this formation has yielded a variety of plant and animal fossils, such as Crocodilia bones, vertebrate bones, turtle shell fragments, and petrified wood specimens. One fossil locality north of the White River Nahcolite Mine le:>se has yielded a Uintathere skull, and remains of a Titanothere skull have been found within the Vdhite River Nahcolite lease azea. A site specific survey for paleontological resources has not been conducted at the Piceance Site. Two localities with "float" bone were documented during tb.e cultural resources inventory of the Piceance Site. These localities represent occurrences where the bone has eroded from its geologic matrix (Conner et al. 1998). Although the "float" bone is not in its original context, there may still be fossil remains in the original matrix. 3.11.3.2 Pipeline Studies conducted in the general area of the pipeline route indicate that campsites aze usually situated adjacent to small permanent drainages neaz the confluence of a main stre:un or tributary. The campsites aze found in upstream locations, which assured access to good wat~:r and low potential for flooding. The presence of groundstone at these sites is thought to indicate the processing of vegetal resources (Pioneer ] 994). The majority of the proposed pipeline corridor, specifically the portion between ttie Greasewood Compressor Station and the Pazachute Site, parallels existing pipeline corridors that have been subjected to cultural resources surveys (Bio-Resources 1995; Grand River Institute 1994; Metcalf Archaeological Consultants 1991, 1992, 1994a, 1994b; Pioneer 1994). These surveys indicated the limited occurrence of cultural resources along the existing natural gas pipeline corridor, including one Achaeological site and two isolated fmds near the middle portion of the pipeline corridor south of the southern Piceance Creek crossing (Grand River Institute 1994; Metcalf Archaeological Consultants 1994a; Pioneer 1994; Bio-Resources 1995). All three of these items were located on prominent ridges running north into Piceance Creek. The site was evaluated as needing data in order to make a NRHP recommendation and the isoh.ted fmds aze not eligible. The paucity of cultural resources located in this area by the previous pipeline surveys may reflect more the nature of a linear survey than the actual site density in this azea. A portion of the proposed pipeline corridor between the Piceance Site and the Greasewood Compressor Station would pazallel an existing Colorado Interstate Gas Company pipeline. A previous survey of this ROW resulted in the recordation of one prehistoric site that was evaluated as not eligible for the NRHP (Metcalf Archaeological Consultants 1991). 3-06 Cultural and Paleontological Resources