Grand Canyon After the Yellowstone caldera erupted, the area was covered in rhyolite lava flows. The incredible shape and colours of the canyon are the result of this rhyolite rock and hydrothermal activity. At one time, this area was an
Wyoming
Road Trip - Yellowstone - Day 1
We woke up to our alarm at 3am this morning after about three hours of sleep. We'd carefully planned the wakeup time so that we could arrive at Norris Campground in Yellowstone by 6am. We'd been following a website which