Bulletin . he old Rancho Los Prietos y Najalayegua few years ago, after lengthy litigation regarding titles, the United QUICKSILVER RESOURCES. 151 States government purchased the grant and restored the land to thepublic domain. Following this, several mineral locations were madeon portions of the ground containing old quicksilver workings. Amongthese were the claims of the Snow and :\Iilburn-]McAvoy (also calledSanta Ynez Quicksilver Company) groups, taken over by the presentowner in 1916. The property was not visited by the writer, but byMessrs. Huguenin and Tucker of the State Mining
Bulletin . he old Rancho Los Prietos y Najalayegua few years ago, after lengthy litigation regarding titles, the United QUICKSILVER RESOURCES. 151 States government purchased the grant and restored the land to thepublic domain. Following this, several mineral locations were madeon portions of the ground containing old quicksilver workings. Amongthese were the claims of the Snow and :\Iilburn-]McAvoy (also calledSanta Ynez Quicksilver Company) groups, taken over by the presentowner in 1916. The property was not visited by the writer, but byMessrs. Huguenin and Tucker of the State Mining Bureau staff, andfrom whose notes the data herewith are compiled. These mines are 8 miles in an air line directly north of Santa Bar-bara, in that portion of the Santa Ynez Mountains north of the are in Sees. 9, 10, 11, 12, T. 5 X., R. 27 W., S. B. M. The groupis located on a belt of mineralized serpentine, that extends along therange for several miles. Strike X. 50^ dip southward. The width. Photo No. 33. Open cut at Milburn-McAvoy (Los Prietos) Mine, Santa Barbara County,showing orebody 65 feet wide. Photo by Carl Milburn. of the orebody varies from -lO to 200, being a well-defined ledge. Theore, cinnabar, is disseminated through the ledge matter, and is in gen-eral low grade, said to average about throughout. Occasionallyrich pockets or shoots are encountered in which the ore will run up to13%. The footwall is serpentine, and the hanging-wall sandstone. Theledge can be traced for 3 miles. Considerable calcite is deposit was discovered in 1860 by Jose IMoraga, but was notworked to any extent until 1874. when the price of quicksilver rose. Alarge furnace (now in ruins) was erected on the Santa Ynez Riverbelow the mine, and over 200 men were employed. Operations ceasedin 1876 due to a decline in the price of quicksilver and prolonged liti-gation over the title to the property. Reopened in 1877 but has notsince been worked on a large product
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