It's the most private and beautiful place we've ever seen in our lives, say David NeVille and Shawn M. Asbell of NeVille Asbell Real Estate, the co-listing agents.

So how often do listings like this one come on the market?

"Very rarely," NeVille says. Every few years, we get a $50 million listing, but this one is accessible year-round and only 20 minutes from Jackson.

The estate, which features several residential buildings and a half-mile of Gros Ventre River shoreline, operates as Grand View River Ranch. Activities include horseback riding and trout fishing on dedicated trails, and NeVille says it can accommodate up to 40 guests and 30 staff members.

Over the years, a number of historic buildings have been brought to the property, all of which are included in the sale. The buildings include the old cabins and cottages from one of the area's first dude ranches (Bar BC Ranch).

Neville says, "They still use these buildings to host guests." They are well preserved and are 1920's vintage.

The property is just 1,000 yards from Grand Teton National Park, offering unparalleled mountain views. It's just a 2O-minute drive from Jackson's restaurants and shops and a 12-minute drive from Jackson Hole Airport.

"This ranch is very well maintained," says NeVille." It's a great place to start."

The sellers bought the land in 1986 and added three guest houses, an arena, a maintenance building and a barn to the property. Previous ownership dates back to 1910, when William Smith homesteaded the land, and in 1944, Claude Wham won the land from John Barnes in a poker game.

In the 1930s, John D. Rockefeller Jr. "purchased all of these properties [in the area] and, with Roosevelt, created what they called Jackson Hole Monument - which is now Grand Teton National Park," NeVille said.

Grandview River Ranch is one of the properties that won't sell to Rockefeller.

The listing agent sees several potential uses for the buyer.

"We think it will be a personal family/company compound," NeVille revealed." It would be an affluent family who would likely repurpose the buildings to house their family and host many corporate and charitable events here, but also use it as their private place.

"Another Rockefeller-type buyer" might preserve the property and donate it to the Grand Teton National Forest or Grand Teton National Park, he said.

Asbell insists, "There will never be another opportunity like this." The Gros Ventre River runs through the property, and there will never be 118 acres again. It's going to be somebody's legacy for sure. It's amazing."