Next week, if all goes according to plan, a small mountain of snow will be melted, repeatedly sterilised and then injected in a high-pressure stream of near-boiling water to clear a bore-hole through the two miles of the ice-sheet.

BBC: New age of exploration in the hunt for extreme life

There are boaters from Utah and fly-fishers from California, who love the freedom of the lake and the clear trout-stream waters below the dam.

ECONOMIST: Water in the West (1)

The stream showed clear and smooth-looking in the glasses and, below the curl of the falling water, the spray from the dam was blowing in the wind.

NPR: Robert Jordan, Hemingway's Bipartisan Hero

He sat now by the stream watching the clear water flowing between the rocks and, across the stream, he noticed there was a thick bed of watercress.

NPR: Robert Jordan, Hemingway's Bipartisan Hero