The Park River where it has been buried beneath Hartford, CT.

Standing at the western edge of the summit plateau of Mount Washington, NH, Dave Glidden of the Mount Washington Observatory holds a three-cup anemometer to measure wind speed. The observatory has recorded a wind speeds as high as 231 mph, and instruments atop the mountain are checked hourly, year-round, requiring meteorologists to venture into the worst weather in the world to monitor the instruments.

A Tahr in the Solo Khumbu of Nepal.

Outer Light, a lighthouse that marks the point where the Connecticut River meets Long Island Sound in Old Saybrook, CT.

Provincetown, Cape Cod, MA, for a photographic series recreating Henry David Thoreau's travels on the Cape.

The Connecticut River from the air.

Elk in the National Elk Refuge outside Jackson, Wyoming.

Rock City State Park in Minneapolis, KS, is made up for almost perfectly round sandstone concretions that look like giant marbles.

Sherpa children walk below Lhotse and Mount Everest.

At dawn on the Raquette River in the Adirondack Mountains of New York, Ken Allen rows the strip built Adirondack guide boat he just finished building the previous week. Allen restored two Adirondack guide boats that had been in his family for a century before building this one from scratch. He keeps the boats at the family's vacation home in Tupper Lake, New York.

The sun sets over Edmunds Col on Mount Jefferson in the Presidential Range of New Hampshire's White Mountains.