Fishing Bridge to West Thumb Scenic Drive is a 20.4 mile moderately trafficked point-to-point trail located near Yellowstone National Park, WY that features a lake and is good for all skill levels. The trail offers a number of activity options and is accessible from May until October.
Yellowstone National Park PO Box 168 Yellowstone National Park, WY 82190-0168 307-344-7381 (recorded information and an option to speak with someone) Additional info: http://www.nps.gov/yell/contacts.htm
Honestly gets boring after 15 minutes.
Pretty drive along Yellowstone Lake.
Nice drive only Yellowstone Lake
This section follows the west bank of Yellowstone Lake to the the West Thumb. It is fairly level, and goes through Spruce and Pine forests.