OttawaRocks: In the foosteps of giants. The preserved hydrothermal vent boulder that inspired Lindgren to formulate the concept of epithermal mineralization 100 years ago. DeLamar Idaho
OttawaRocks: Naumannite (silver selenide) in drill core, DeLamar, Idaho. Integra Resources core, ~2.5"
OttawaRocks: Fossilized hydrothermal vent near the Brady Geothermal plant, northern Nevada
OttawaRocks: Recent steam vent, Brady geothermal field, south of Winnemucca, Nevada
OttawaRocks: Active steam vents. Brady geothermal field, south of Winnemucca, Nevada
OttawaRocks: Brady geothermal field, south of Winnemucca, Nevada
OttawaRocks: Roots of reeds preserved in hydrothermal sinter deposits, Brady geothermal field, south of Winnemucca, Nevada
OttawaRocks: Quicksilver mercury mine, Nevada
OttawaRocks: Northern Nevada scenery. near the old Quicksilver mercury mine