Tourists Venture Inside a Volcano in New Hampshire

O S S I P E E, N.H., July 24, 2000 -- You’ve skied the majestic mountains,trekked the wild terrain and lounged by the lakes. So what’s leftfor the New Hampshire tourist? Try venturing into a volcano.

About 200 million years ago, long before tourists flocked to NewHampshire to see the foliage, an active volcano was the topattraction.

Geologists say that at the time it was much bigger than MountSt. Helens, and when it erupted for the final time the force wasperhaps 10 times that of the 1980 rumble in Washington state.

Curious Attraction for Tourists

And the cloud of ash, which reached temperatures of 1,300degrees and traveled some 100 mph, would have killed anything inits path.

Left behind today is a less dangerous, but still curiousattraction for geologists and tourists — the Ossipee Mountains,which provide a rare look at the inner workings of an inactivevolcano.

“It’s like taking a trip down to the center of the earth andgetting deeper and deeper and seeing the bowels of a volcano, theplumbing,” said geologist Stanley Williams.

“It’s like being inside a volcano, kind of a neat thing. If yougo to a modern volcano, you can take samples outside, but you can’tsee down inside,” said Williams, who was a visiting professor atDartmouth College from Arizona State University last year.

Take the Car, Take a Hike

Visitors to the Ossipee Mountains can experience the vicariousthrill of standing on a once-active volcano, and collect samples ofvolcanic rock belched up during the last eruption. “It is one of thefew places in the world that offers such easy access to the guts ofa volcano,” Williams said.

“Tourists can take the kids and experience the volcanicexperience without worrying about eruptions,” state geologist GeneBoudette said. But they might have to do some studying to know forcertain which rocks are volcanic, as they aren’t as obvious as somewould think — there hasn’t been any lava flowing nearby for quitesome time.

The Ossipees are easy to find on a topographical map of thestate. The circular caldera, or crater, quickly catches the eye andit can be reached by road to Castle in the Clouds and a short hike.

A lot of people see the circle and want to go there, Boudettesaid. “It’s kind of getting everything there in a nice neat tightcircle,” he said.

Geology professors in the state have taken their classes therefor hands-on study, geologists from other parts of the world havemade the trip, and there are the uncounted tourists who find theirway up the mountains.

Most Accessible Volcano

Studying volcanos is like trying to put together “a jigsawpuzzle with maybe 200 pieces, but you’re given only 50 pieces, withthe rest buried or covered,” Williams said. “Ossipee plugs insome of those pieces.”

The tallest peak is under 3,000 feet. Before the big eruption,the mountains were much higher — before collapsing into themselves,creating the caldera.

“It’s the most accessible, exposed and vivid example of theinner workings of a volcanic system,” Boudette said. “It’s kindof a geologic monument.”