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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for Forty-niners' strikes 8 letters:

BONANZAS: Forty-niners' strikes
PAYDIRT: Forty-niner's strike
LODE: Forty-niner's strike
GOLDYELLER: Forty-niner after a lucky strike?