Cassie and Connor in Port Columbus Airport preparing for departure to Salt Lake City, Utah.

Connor beginning his climb up the pole at the University of Utah's ROPES course.

Cassie at Intermittent Springs in Star Valley, Wyoming.

The Cascading Hot Springs in Yellowstone National Park were breathtaking.

Connor holding a skull he discovered while hiking in Yellowstone.

Trees affected by the forest fire in the late 80's in Yellowstone.

Cassie and friends whitewater rafting down the Shoshone River in Wyoming.

Connor plastering bones recently unearthed at a dig site at the Wyoming Dinosaur Center.

The 2004 Earth Explore group poses under the Elk Antler Arches in Jackson Hole, Wyoming.

The view of the Rocky Mountains from the airplane was magnificent.

Dinoaur skulls at the Museum of Ancient Life in Utah.

Re-creation of the first reptiles who roamed the Earth at the Museum of Ancient Life.

A T-Rex skeleton at the Museum of Ancient Life.

A majestic view of the Grand Tetons from Teton Science School.

Cassie holding a real jawbone discovered during a hike in the Tetons.

Old Fathful erupting in Yellowstone.

The Painter's Pots mudpots in Yellowstone.

Wild elk roaming freely in Yellowstone National Park.

A group of Earth Explorers (Connor is on the right) experience the wild west at its best.

"This Week" featured the students from southwestern Franklin County who went on the trip.