Hello crossword solvers! Today let's find the answer to the clue With 24-Across, founder of the Sierra Club from the USA Today crossword. After we've gathered any other hints from the USA Today crossword puzzle and all possible helpful and relevant information from other sources, we are ready to solve the clue With 24-Across, founder of the Sierra Club. The answer we found for the clue With 24-Across, founder of the Sierra Club is: