Craig Pass Closed for the Season; Mammoth to Norris Closed Sept. 14-30
The road linking West Thumb and Old Faithful is closed for the season—traffic should detour through West Thumb, Lake, and Canyon. The road from Mammoth to Norris is closed for two weeks—traffic should detour over Dunraven Pass. More »
Inside Yellowstone - Mammoth Area
BONUS FEATURES - Related Web Pages
Mammoth Hot Springs Online Tour
Mammoth Terraces and How they Work
Mammoth Area Geologic Highlights
Webcam on Mammoth Hot Springs
Fort Yellowstone Online Tour
History of Fort Yellowstone
Map of Mammoth Hot Springs - Fort Yellowstone Area
Bicycling in Yellowstone
USGS Bulletin, Geology and Thermal History of Mammoth Hot Springs
Did You Know?
Even though the animals of Yellowstone seem tame they are still wild. Feeding the animals is not permitted in any way, and all visitors must keep 100 yards away from wolves and bears, and 25 yards from other animals.