Read the text and determine if the sentence is true:

Sasco is a ghost town located in Pinal County, Arizona, west of Red Rock. Sasco, which is an acronym for the Southern Arizona Smelter Company, was a company town with a large smelter that served several mines. Once an impressive and little-known ghost town, today Sasco is a common sporting destination with shotgun shells, airsoft bb's, paintball splatter, and litter in the area.

Sentence: Sasco, or the Southern Arizona Smelter Company, contained the country's largest smelter at one time.
It's impossible to say