Calpine

Steam Heat - Free (1929)

Footage of geysers in California being to steam engines for industrial use, United States of America.

Colter's Hell Hot Springs (1973)

An artistic montage of the Mammoth Hot Springs in Yellowstone National Park.

Harnessing Natural Steam In Russia (1968)

Russian scientists explore the ways of harnessing natural steam.

The Valley Of The Hill

Various shots of an area of thermal activity in Japan.

And Now For A Contrast "Something Hot" (1929)

Thermal activity areas in California - jets of steam emerge from rocks.

Earth Power And How It Is Being Harnessed (1933)

Men harness the power of thermal activity.

Nature Lets Off Steam (1966)

New Zealand's thermal springs are used as source of electrical power.

Spring Is Here (1933)

Good footage of the Valley of the Geysers in New Zealand.