Klickitat Mineral Springs

CO2 seeps from crevices in the basalt rock formation, presumed to originate from Mt.

Demand for dry ice grew, prompting more wells to be drilled and expansion of the facility.

It eventually reached maximum production of 18 tons per day, limited by the available gas flow in the area.

[3] In 1957 Newbern expanded capacity in Kennewick, Washington where CO2 was a by-product of ammonia fertilizer production.

The main building of the dry ice plant complex has been retained as a sanctuary of swifts, which nest in the chimney.