On Aug. 14, 1970, an underground river of coal began flowing 273 miles across the state of Arizona, and into a 1,500-Mw. power plant near Davis Dam in Nevada. Equivalent in capacity to two 160-car railroad trains per day, the unseen "river" is the 18-in.-dia. Black Mesa coal slurry pipeline, so far the largest and longest slurry pipeline in the world.
Online Language Learning Tool SkELL allows users to search for phrases in sentences, collocates and similar words. These examples have been automatically selected and may contain errors.