ALTOONA, Pa, 2017-Feb-16 — /EPR Retail News/ — Sheetz, one of America's fastest-growing family-owned and operated convenience retailers for more than 60 years, today ( Feb. 14, 2017)  announced the upcoming opening of its new store located in Harmar Township, PA, in Allegheny County.  The opening is scheduled for Thursday, Feb. 16, at the store, located…