By Cameron Frankish | Tywarnhayle Copper Mine, Porthtowan, Cornwall, UK

By Sharon Baynham | Chesley, ontario

By Ron Andersen | Yosemite National Park, California, USA

By Ron Andersen | Hemet, California, USA

By Ron Andersen | Hemet, California, USA

By Ron Andersen | Yosemite National Park, California, USA

By Ron Andersen | Ancient Bristlecone Pines, California, USA

By Ron Andersen | Hemet, CA, USA

By Ron Richman | Foster City, CA

By Ron Andersen | Wawona Hotel, Yosemite National Park, California, USA

By Aaron Watson | West Elk Mountains, Colorado, USA

By Ron Andersen | Yosemite National Park, California, USA

By Ron Andersen | Hemet, CA, USA

By Aaron Watson | West Elk Mountains, Colorado, USA

By Avronil Chatterjee Soumyadeep Mukherjee | Ladakh, India

By Aaron Watson | West Elk Mountains, Colorado, USA