. . . . . . . . . "Environmental assessment, decision record, and finding of no significant impact for the IXC Communications, Inc.'s proposed fiber optic telecommunications system, Denver, Colorado to Salt Lake City, Utah"@en . . . . . . . . "Environmental assessment, decision record, and finding of no significant impact for IXC Communications, Inc.'s proposed fiber optic telecommunications system, Denver, Colorado to Salt Lake City, Utah"@en . .