** RSVPS have closed - Please email grandcanyonsme@gmail.com if you have questions.

Date & Time: August 16, 2019 (Friday) at 6:00PM

Location: Elks Theatre (Hall 1) 117E Gurley St, Prescott, AZ 86301

Sponsors: SRK Consulting & Willing Services

Speaker: Terry Braun

Topic: Alaska Gold and Southwest Copper - How Daniel Jackling Brought Copper Know-How to the Juneau Gold Belt

Details:

In 1911, a young mining engineer named Bartlett Thane assembled a large claim block, 4 miles southeast of Juneau, Alaska. Across the Gastineau Channel on Douglas Island, the Alaska Treadwell Gold Mining Company had, by 1904, produced gold valued at more than three times the purchase price of Alaska in 1867 (Kelly, 2010). Thane knew his deposit was lower grade than other mines or prospects in the area; however, if the deposit was developed on a large-scale, the trend and size of the deposit made the project potentially economic. In 1911, Thane developed a business plan for the project and successfully attracted investor interest.

In 1912, Daniel C Jackling visited the property at the request of an east coast investment group. Upon inspection of 5 years of production records for the Perseverance Mine, Jackling saw an opportunity to apply the low-grade/high volume milling technology which was widely adopted to the copper porphyry deposits of the southwestern U.S. With a design capacity of 6,000 tons per day (5,454 tonnes/day), Jackling’s innovative mill design would require high volume underground mining methods and the power of two new hydroelectric projects.

By 1915, the Alaska Gastineau Mining Company was in full production. Between 1915 and 1919, the mine and mill set production records for haulage and throughput. The hydroelectric projects proved to be successful engineering marvels. Operational difficulties related to ore grade, refractory elements and labor shortages interrupted production on an increasing basis. In 1921, the mining company permanently shut down operations.

PLEASE RSVP BY Tuesday, August 13TH AT MIDNIGHT

Menu - Buffet

Spring Mix with Mandarin Orange & Dried Cranberries

Tender Roast Beef Au Jus with Creamy Horseradish Sauce

Baked Chicken with Pesto Alfredo

Vegetarian Stuffed Portabella Mushrooms [Number TBD]

Roasted Red Potatoes with Pepper/Onion Medley

Whole Green Beans with Bacon & Red Onion

New York Cheesecake with Raspberry Sauce