Adjacent to Fort Yellowstone, the Mammoth Hot Springs is a huge complex dotted with numerous large hot springs.
Another stunning location in the Yellowstone National Park, the Mammoth Hot Springs adorned with hundreds of springs and terraces that have formed over thousands of years. The source of water of these hot springs is actually the Norris Geyser Basin, connected via an underground fault line. Over here you will find several travertine terraces, most of them on the Terrace Mountain - the largest carbonate depositing spring in the world. Take a walk along the boardwalk which will take you across these steaming features, and popular terraces like the Minerva Terrace and the Orange Spring Mound among several others. The Fort Yellowstone located right next to the Mammoth Hot Springs is another interesting place. This historic US Army fort was built when to bring order to Yellowstone and preserve it's unique nature, the army had to be requested to step in and take charge of the park. A tour of the fort is must, taking you through the developments over the decades at the national park. Other attractions of the area include the Albright Visitors Center, the Research Center and the Old Gardiner Road. The iconic Roosevelt Archway is also located on the entry side of the Mammoth Hot Springs.