Which state is Mount Chiginagak located in?
CREATE TABLE "the_50_most_topographically_prominent_su" (
  "rank" real,
  "mountain_peak" text,
  "state" text,
  "mountain_range" text,
  "location" text
);
SELECT "state" FROM "the_50_most_topographically_prominent_su" WHERE "mountain_peak"='mount chiginagak';