The storied Cielo Vista Ranch in the San Luis Valley has sold after listing for $105 million.

The sale of the 83,000-acre ranch marks the largest U.S. ranch sale in 2017. The details of the sale and the identity of the buyer were not disclosed.

Listing broker Jeff Hubbard, who has guided elk and sheep hunts on the ranch for two decades, said in a statement that the buyer “is absolutely ideal.”

“He is one who is a true conservationist and is deeply committed to preserving this national treasure and extraordinary resource. He truly appreciates and embraces the responsibility of ensuring this property remains a reflection of our state’s beautiful landscapes, diverse wildlife and heritage for decades to come,” reads the statement from Hubbard.

The 83,368-acre Cielo Vista property encompasses the 14,049-foot Culebra Peak and 18 13,000-foot peaks stretching across more than 20 miles of Sangre de Cristo ridgeline.

The ranch has a renowned history in Colorado. In the mid-1800s, Mexico granted the ranch to a French Canadian trapper who then deeded Mexican and Spanish settlers part of the ranch as an attempt to colonize the San Luis Valley before Colorado was a state. Those historic settler deeds granted access to several Sangre de Cristo peaks for grazing, hunting and logging. In 1960, North Carolina lumberman Jack Taylor bought the property from heirs of Colorado’s first territorial governor, who bought the property from the family of the trapper. He logged the property and closed off access, sparking a range war that lasted for decades.

Enron executive Lou Pai bought the ranch from the Taylor family in 1988 for $20 million.

In 2002, the Colorado Supreme Court restored wood gathering and grazing rights to heirs of the original settlers, ending a 30-year lawsuit. The decision denied hunting and grazing rights and Pai appealed the ruling to the U.S. Supreme Court, which declined to hear his case.

In 2004, Pai sold the ranch for $60 million to a group of Texas ranchers who renamed the ranch Cielo Vista.

When Denver-based ranch broker Ken Mirr listed the ranch at $105 million this year, he said he was looking for a conservationist who would protect the property. Billionaire hedge-fund owner and renowned conservationist Louis Bacon paid $175 million for the 172,000-acre Trinchera Ranch in 2007, paying about $1,100 per acre for the ranch that is north of Cielo Vista in the San Luis Valley. Trinchera’s per-acre cost is not far off the $1,250-per-acre price tag for Cielo Vista.

The buyer is not Bacon, but Mirr said “we found the right person for sure.”

Mirr said one-third of the property is under a conservation easement, and he would not say if the new buyer planned to add more acreage to an agreement that prevented further development.

“They certainly will not be developing it or anything else other than fixing it up and maintaining it and being very involved in stewarding that property,” Mirr said of the buyer, whom he called “a new neighbor to the area.”