Explore Chicago Collections
https://explore.chicagocollections.org/records/?f1-topics=Natural+%26+Built+Environments%3A%3AWaterways&f2-topics=Natural+%26+Built+Environments%3A%3AWaterways&f3-types=Digital+Images&f4-institutions=Chicago+Academy+of+Sciences+%2F+Peggy+Notebaert+Nature+Museum&f5-topics=Natural+%26+Built+Environments%3A%3AConservation&f6-topics=Work%3A%3AScience