Labeled cutaway illustration of a compressed natural gas shuttle bus at a South Rim stop next to a fenced dispatch compound with a fuel tank and maintenance bay

South Rim shuttles: the nation's second-busiest park transit system

7.6 million riders a year, one contractor since 2000, and a bus compound fenced off from the very visitors it moves.

September 23, 2026 · 7 min · 1426 words · Justin