The Castle/Maroon bus runs three times an hour leaving Rubey Park on the hour and twenty and forty minutes after each hour.  This service is from 7:00 am to 12:00 am leaving Ruby Park on Monday through Saturday. On Sundays the service runs from 9:00 am to 9:00 pm.

Outbound: Departs Rubey Park at :00, :20 and :40 past each hour. Departs Castle Ridge at :07, :27 and :47 past each hour.

Inbound: Departs Aspen Highlands at :00, :20 and :40 past each hour. Departs Castle Ridge/Sspen Valley Hospital at :05, :25 and :45 past each hour.

The Castle/Maroon bus provides access to West Main Street, Aspen Valley Hospital, the Aspen Chapel, The Senior Services Building, Aspen District Schools Campus, the James E. Moore Pool, and Aspen Highlands Ski Area.