Crossword clues for the word: SIERRACLUB The word SIERRACLUB has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for SIERRACLUB Showing 1 to 8 of 8 results Clue(s) Environmental group since 1892 Environmental organization established in 1892 Environmentalist's steak order? Green giant Group founded by John Muir Group with the ''Our Wild America'' campaign Muir's baby Oakland-based environmental group