![]() NPS By the late 1990s, cleaning the air, reducing noise, and decreasing the stress that comes from traffic jams and lack of parking had all become major concerns in Zion. Then along came the idea of replacing 5,000 cars with 21 buses. Each propane-powered bus and trailer replaces 28 visitor cars and reduces CO2 emissions by over 12 tons per day. What a difference it has made for air quality, wildlife, and you! ![]() With these efforts, and your assistance, we can reduce the environmental impacts of the more than three million visitors that vacation in Zion annually and ensure the protection of our resources for this and future generations. Thank you!
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Last updated: June 22, 2022