They are meant for processing into French Fries (aka chips in the UK) and as all-purpose for direct to consumer sales.
Not being grown commercially as of 2006.
Shasta Potatoes were developed by a Dr Horia Groza of the University of Wisconsin from a cross between two potatoes referred to as “A69656-4” and “WNC214-36.”
During development, the potato was referred to as “SH-1.”
Released sometime before 1990.