The AMK Ranch represents the initial phase of vacation homes in Jackson Hole. Homesteaded by John Sargent in 1890, little remains of his lodge and store that served travelers on the road to Yellowstone. All current buildings date to the W. Lewis Johnson era (1926-1936) and the Alfred Berol era (1936-1976). Both Johnson and Berol built large log vacation homes representing two distinct periods of rustic architecture as well as various other cabins and outbuildings.

Berol, president of the Eagle Pencil Company, decorated his lodge with "pencil themed" fixtures including the wrought iron and log chandeliers. The Berols-Alfred, Madeleine, and son, Kenneth (AMK)-sold the property to the National Park Service in 1976 for more than $3 million and a life estate. Today, the ranch houses the University of Wyoming-National Park Service Research Station, hosting researchers studying the Greater Yellowstone Ecosystem. Attend the Summer Speaker Series on Thursday evenings during summer.
Visit the UW-NPS Research Station website for more information