Tag Archives: mountain topping

How do they put the mountain top back on after they cut it off?


Mountain Topping:  An alternative mining technique to digging into a mountain to extract valuable ores.  Rather than tunnel, the mountain top is scraped to reveal buried ore. Cutting through successive thin layers efficiently exposes the ore while the mountain top … Continue reading

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Mining at 17,000 ft: It’s All Downhill From There


Heather Willliams, a professor of Political Science at Pomona College has written a thoughtful article about open-pit mining at 17,000 ft in Peru.  Somehow I never thought about mining with an oxygen mask, but then Peru has coca for the soroche (altitude … Continue reading

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Indigenous Maya Still Disposable in Guatemala


Pacal Usually I like to write about how the Maya independently invented the concept of zero.  How they developed a written language (only recently deciphered).  How they built pyramids, plotted the movement of the heavens, and wrote books to record … Continue reading

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Where Once a Proud Mountain Rose…


We are not fond of actions that scar the face of our planet, and that those who scar it move to Pleasantview with a view of a winding river.  Were it up to me (in a moment’s flight of fancy), … Continue reading

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