Vermont's Official Foliage Forecaster | Driving with the Leaf Spotter
Late last summer, Vermont’s tourism department announced that Michael Snyder, commissioner of the Forests, Parks & Recreation department, had been named the state’s first official “Foliage Forecaster.” Vermont is likely the only state that could justify such a position. Its landscape, 76 percent forested, carries the country’s highest proportion of the vibrantly colored but wildly variable sugar maple. Visitors spend some $400 million during the fleeting weeks of foliage each fall. The department’s Web site has also introduced a new foliage-tracking map to help travelers plan and adjust their trips along with the changing color. I was picturing aerial photography and remote sensors sending real-time data to the computers that generate the map’s bands: 20 percent color here, peak color there, just past peak above that …
I called Snyder and asked him how the forecasts and the map come together. I was interested not only in what provided the foliage map its data but in what gave the state its color, too. He suggested we go for a drive.
Route 25 in east-central Vermont lifts from the Connecticut River near Bradford and follows the Waits River Valley northwest (upstream) about halfway toward the state’s capital, Montpelier. The route skirts a geologic bedrock zone called the Waits River Formation, which dominates the eastern half of the state, and whose calcium-rich soils are generally sweeter and more productive than all of New Hampshire’s and most of the rest of Vermont’s.
“That’s one reason the color is so good here,” Snyder explained. “The calcareous soils produce bigger, more vigorous, faster-growing trees than just about anywhere else in the state.”
Out the window we could see the harbingers of the coming foliage season along the roadside: crimson woodbine, blazing sumac, purple asters, goldenrod. The first yellows of the season were emerging in the hillside canopies.
We passed a few small hardscrabble dairy farms still holding on, and Snyder talked about a different kind of bedrock when he said that he liked this area because it showed the transition from an old life to a new one.
We passed the little town-owned rope-tow ski area in East Corinth, and Snyder talked about the mix of species that gives the northern hardwood forest its distinctive hues—especially sugar and red maple, but also yellow birch and American beech, with cherry, ash, oak, and locust behind those, and, “for contrast and texture,” the evergreen hemlock, spruce, and pine—and how the changing climate was already changing the mix.
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