The listing is a rare opportunity in the valley, said listing agent David Viehman with Jackson Hole Real Estate Associates and Christies Great Estates.

“There’s a lot of historic value and western heritage,” he said of the property. “Nothing compares to this right now.”

A website for the sale was launched this morning at www.ForbesJacksonHoleRanch.com.

The daughter of the former Forbes magazine publisher, Moira Mumma, is selling the 85 acres but will keep a parcel near the property, Viehman said. She is selling the property because she doesn’t need so much space, the Realtor said.

“There are 20 some odd beds at the main compound,” Viehman said.

The property was part of the original Jackson Hole Ranch. It borders Grand Teton National Park, and the Snake River runs through it. 

The Forbes listing is one of the few large land offerings along the river that has not been protected with a conservation easement, Viehman said. The property is being sold as one parcel, but it’s divided into two tracts, Viehman said.

One of the oldest structures on the property, a historic barn, dates to 1918. A 4,100-square-foot main lodge includes an original homestead cabin, while a main room and gallery date to the 1940s.

The lodge includes five bedrooms, four bathrooms, a recreation room and private sitting room. In addition, six guest cabins offer another 10 bedrooms, while there also is a caretaker’s house that includes three bedrooms.

The family’s ties to the valley date back more than 80 years to Forbes’ wife, Roberta Remsen Laidlaw.

In 1928, Laidlaw began visiting the valley with her parents when she was a child. After she married Malcolm Forbes, the couple honeymooned here, and Roberta insisted on returning to the Equality State.

“My mother, before her death in 1992, spent six months a year at the ranch,” Mumma said in a news release. “She loved the valley more than anything on earth, and we were the lucky beneficiaries of that love.”