It is located south of U.S. Route 2, about 8 miles west of Stevens Pass and bordering the Alpine Lakes Wilderness.
Near the railroad, in the 1890s, a lodge known as Madison Hot Springs, was built to accommodate visitors to these mineral baths who arrived by train from Seattle.
Construction by the Great Northern Railway of an 8-mile tunnel under Stevens Pass dumped rubble into the front yard of the lodge and effected its destruction.
In October 2001 the King County Sheriff shut down the springs and threatened to arrest bathers for trespassing, at the land owner's request.
Activities occurring at the springs were a liability risk and the fact that the area is environmentally protected and no building permits had been issued was used as a reason to demolish the decking.