CREATE TABLE table_47380 ("Rank" FLOAT, "Mountain Peak" TEXT, "Region" TEXT, "Mountain Range" TEXT, "Location" TEXT)

what is the mountain range when the region is british columbia and mountain pea is mount edziza?
SELECT "Mountain Range" FROM table_47380 WHERE "Region" = 'british columbia' AND "Mountain Peak" = 'mount edziza'
SELECT "Mountain Range" FROM "table_47380" WHERE "Mountain Peak" = 'mount edziza' AND "Region" = 'british columbia'