Quiz: How do park rangers gather data on the ecological health of June 13, 2025 by Gideon Lakewood How do park rangers gather data on the ecological health of Crater Lake? Discover more about Crater Lake Tours at our home page. A) By conducting regular water quality tests and monitoring wildlife populations B) Through annual visitor surveys and feedback forms C) By using satellite imagery to analyze landscape changes D) Through guided tours with tourists to collect observational data Submit Answer