1920's mining camp and environmental education center is serving to protect the surrounding forest, one of the last of its kind in the Pacific Northwest.

World's only nuclear reactor operated by liberal arts undergraduates.

This natural marble cave is one of only five national monuments in Oregon.

A volcanic landmark located on an Ice age lake bed.

A vertically floating hemlock controls the waves and weather at Crater Lake.

Nestled between a college and a golf course, the garden is home to more than 2,500 rhododendrons.

Unknown to many, this sparkling turquoise lake hides amid Oregon's snowcapped mountains.

A volcanic fissure over two miles long and up to 70 feet deep.

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

Massive crater in central Oregon.

This Oregon farm is dedicated to teaching people the professional art of tree climbing.

Only known mainland rookery of the threatened Stellar sea lion.

The longest continuous lava tube in Oregon.

Treehouse motel and treehouse-building school.

Not-so-fearsome tiny trolls live under this wooden train trestle in Portland.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

This lake in the Cascades lives up to its name, disappearing down a hole every spring.

This frequently-photographed waterfall takes only a short hike to visit.

No one knows how this Pacific Northwest spruce tree came to have so many trunks.

A heavenly experience, right here on Terra Firma.

The seamy, underground secrets of Portland's criminal past.