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value of silver. The ore discovered by Walsh had a high gold content and could, therefore, be mined quite profitably. After his discovery, Walsh began quietly acquiring mining claims in the vicinity of his strike, which he was able to purchase at low prices because of the depressed mining market (Henderson 1926:185). Mining began in 1897 at the 2 and 3Level considerably above site 50R65. In late 1897, an amalgamating-concentrating mill began to be constructed on the Deadwood and Emily Mill Site mining claims at the junction of Sneffels, Imogene, and Canyon Creeks at what was later known as the 14 Level (50R65~). The mill was operational by February 1898 and was supplied with ore by an aerial tramway from 2 and 3Level. At 3Level, aself-contained mining camp complete with a boarding house, shops, and warehouses was constructed that served as the base for mining. The mine was enormously profitable and made Thomas Walsh a rich man. Walsh sold the mine to Camp Bird, Limited, an Engli:;h company, on May 12, 1902 (Rosemeyer 1990). It appears that the new company constructed a fine set of residential and other buildings at the mill in 1903 on the Glen Monarch Lode and Mill Site claims that were adjacent to the Camp Bird Mill. Walsh had purchased these claims on February 8, 1!301, from Mrs. H. F. Blythe and they had passed on to the new com- pany with their purchase of the Camp Bird Mine. The claims had been filed upon by H. F. Blythe in 1880 and were patented April 4, 1889 (Ouray County Courthouse, County Clerk's Office, Deed Book 72, Page 250; Reed 1880). The mill was destroyed by an avalanche and resulting fire in march 1906. It was quickly replaced and a new mill was in operation by November. By 1910, it was found that the value of the ore from the mine was decreasing in richness and by 1914, the mill was operating at less than half capacity. The expense of pumping water from the lower mine workings, tramway op- eration, and maintaining the camp at 3Level coupled with normal mining costs made it difficult to justify mining in the establishf:d manner because of the declining returns from the ore produced. In order to streamline the operation and eliminate the need far pumping, a tunnel was driven at the 14 Level into the deepest part of the mine workings. Mining was suspended in June 1916, the tramway was dismantled, and the camp at Level 3 was closed. Construction of the Camp Bird Tunnel began in December 1916 and was cmnpleted in June 1918. From that time on, all mining was conducted through the tunnel with ore delivered to the mill directly from the mine. With completion of the tunnel, considerable exploration work was conducted in the mine, but no new ore bodies were found (Rosemeyer 1990; Henderson 1926:55). As a result, the mine closed in 1920 and did not reopen again until 1925. In October 1925, the Camp Bird Leasing Company reopened the mine and soon in- creased the capacity of the mill. The lease was acquired by King Lease, Inc. in April 1929, who oper- ated the mine continuously until December 1956. At that time, Camp Bird, Limited began mining again for themselves under a wholly owned subsidiary called Camp Bird Colorado, Inc. The com- pany demolished the old mill and constructed an entirely new selective flotation mill on the same location that was completed in 1960. Zinc and lead were the principal metals recovered. In the 1970x, water in the workings of the mine became an increasing problem. In December 1977, the pumps became disabled and 1;he lower workings of the mine filled with water. The water was pumped out again just long enough to salvage submerged equipment. A small amount of mining took place in 1981 and 1986, but none since then (Rosemeyer 1990). The mine is now in the process of being dismantled and reclairned by Camp Bird Colorado, Inc. 4.0 PRIsVIOUS WORK AND EXPECTED RESULTS The only previous cultural resource work conducted at the Camp Bird Mine (50R65) was its recordation in 1974 by Susan b:. Nichol. The reason for recording the site is not known and the site's eligibility for inclusion on the National Register of Historic Places has never been determined. Based on examination of the historical literature about the site (Henderson 1926; Rosemeyer 1990), it was expected that few structures 5(1 years of age or older would be present at the site; most of the mining buildings were expected to be from the 1950s and 1960s or mare recent. A few residential structures from soon after 1900 were expected to be present, however.