Sculptor Andy Goldsworthy has spent much of the last three decades creating works amid natural settings in his native England or across Europe and North America, or even at the North Pole. His materials: leaves, rocks, sticks and ice as well as the natural forces of time and weather. There are a number of photographic collections of his work with photographs that he himself has taken. Those are in print, as well as the 2001 documentary "Rivers and Tides." He recently completed a new work in San Francisco -- his tallest ever in North America -- a 100-foot cypress spire in the Presidio National Park.

I recently spoke to Andy Goldsworthy about his work:

Editor's note: More about Andy Goldsworthy can also be found on KQED's Spark, including video of the installation of "Drawn Stone."