Wyoming Turns Coal Mine to Windfarm

By Daniel Terdiman (CNET.net)

GLENROCK, Wyo.--Walking across the former site of the Dave Johnston Mine here, about half an hour outside Casper, you'd never know that over the course of 42 years, 104 million tons of coal was taken out of the ground.

But now, instead of having a heavy carbon footprint--and coal certainly does--these rolling hills have a green footprint. Today, the site is home to a 158-turbine wind farm that produces 237 megawatts of power, enough electricity for 66,800 households for a year.

And what's particularly notable about the site is that while the wind farm is among the newest and most state-of-the-art in the country today, it is also likely the first full-scale wind power project to be installed on the site of a former coal mine.

From 1958 until 2000, the Dave Johnston Mine stretched for 9 miles through this otherwise barren landscape. But in the late 1990s, after the mine's operator, Rocky Mountain Power, determined that it was no longer economical to run it, a full-scale reclamation project began.
Photos: Wind farm rises up from former coal mine

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As part of Road Trip 2009, I visited the wind farm to get a first-hand look at how such a scar on the earth can be successfully converted to a graceful and clean power project.

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