Oreogon Basalt Mine
Juniper Ridge opal mine in Oregon - Free-Form Artists. 01 The Juniper Ridge opal mine in Oregon 02 Mine tour and geological explanation by Joe Gassaway. 03 The mine is very small only 6 people can work it at the same time. 04 Katerina is working a prime spot and finds large nodules. 05 Yellow, orange and red opals are found, in sizes up to 30 cm. 06 In a day you may fill a bucket with good .