This is a remarkable opportunity for those interested in the occult history of America, and in the techniques and mineralogy of ancient alchemists who visited this land in pre-Columbian times. This is a chance to participate in actual in-field, hands-on archaeological research, recreation of ancient alchemical processes and documentation. This is the final summer Expedition, and it takes place over the Autumnal Equinox period (September 20th - 22nd). This is the last period when the lower levels of water in the Columbia River, and weather conditions, are favorable to visiting some of the sites covered. Also, during winter months outdoor parks (like Horse Their Lakes), and many museums are closed. Workshop participation qualifies students for the FREE Sat & Sun Alchemy Expeditions. Please call us at Tetraskele for car pool assignments and lodging/travel cost information [Participants divide costs and gasoline/car expenses]. Sunday's expedition requires museum entrance fees of $8.00-9.00 ea, for 2 museums. Entrance fees will be paid by students (Senior and Military discounts are offered by both museums).