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3 Surve Methodology As soon as Anschutz authorized Centuries to do the survey, t'he latter initiated contact with local Forest Service personnel in an effort to effectively coordinate the operational needs of the client with the pro- eeedural demands of the government [Weyers and Mangan 1977]• On October 6, 1977 a Level IV field survey was undertaken by Steven G. Baker and Pat Flanigan of Centuries. This corporation holds a valid anti- quities permit for Forest Service land in Colorado. They were accompanied in the field by Lee Kuhre and Mike Alsdorf of Anschutz. Alsdorf and Kuhre had previously flagged the route of the road wfiich would provide access to the top of the ridge where the drill sites are located. As roughly indi- cated in Figure 2, this new road begins at the Forest boundary on an extant road in Spring Gulch and winds its way south and west for approximately one and one-half miles and rises about 1,000 feet before it emerges on the top of the ridge in the vicinity of drill site No. C~'[Fig. 2]. The right- of-way for this road was generally considered to be a minimum of fifty feet but, due to the rugged terrain, will generally be considerably less - roughly between ten and twenty feet maximum. The grade of this road is best described as extreme as indicated in Figure 2. Additional access roads link the various drill sites on top of the ridge. Individual drill sites were not to be more than 2,500 square feet, or fifty feet square according to stipulations of the Area Mining Supervisor [Storrs 1975]. Due to the exigencies of timing, the field work was undertaken before the searches of the files of the State Historic Preservation Officer and the National Register were initiated. As of this writing, the appropriate offices of the State Historical Preservation Office have been contacted [Baker 1977], and no sites have been indicated within the project area of Sections 22 and 27. In addition to these file searches, the Forest Of- fice for the White River National Forest was consulted to see if the For- est Service had any record of sites in the two sections of the protect area. The result of this contact was also negative [Mangan 1977]. The access road routes were surveyed by a team consisting of two arch- aeological field workers walking the entire right-of-way. At no time did the interval between these personnel exceed fifteen feet. The drill sites were also covered by transect with the interval never more than ten feet between each man. In addition to transects over each drill pad, a orie hundred foot buffer zone was given a more general scrutiny for obvious re- sources or features which might be located near the site. The intensity of this survey along the road and at each drill site was that of a Level IV or 100 per cent survey. It is estimated that the 100 foot buffer zones received a coverage of 40 to 60 per cent.