According to local lore, Native Americans named Devil's Thumb, a rocky outcropping that towers high above the Ranch. As legend goes, after the warring Ute and Arapahoe tribes settled their differences in the Ranch Creek Valley, they buried the devil, but left his thumb exposed to remind them of the evils of war.

Before the Trans-Continental Railroad opened up the area in 1904, a stagecoach route from Idlewild (now Winter Park) joined the Rollins Pass route. A state station was situated east of what is now our Ranch. The road extended transversely over the Ranch where it followed the course of the existing County Road 83. The land was rich agriculturally, and was used for cattle grazing in the early 1900s.

After the railroad was introduced, settlers began moving west in search of wealth and opportunity. Many ended their journeys in the Rocky Mountains. During this time, there were more people living in the Fraser Valley than there are today. One favorite hangout of the railroad workers was a dance hall on Black Ranch, located immediately north of Devil's Thumb Ranch.

In the 1930s, Margaret Radcliff built the original Ranch homestead and operated it as a dairy. However, it was brothers Dan, Louis, and George Yager who started Devil's Thumb Ranch as a vacation property in 1946. The Yagers incorporated the Radcliff homestead in to the Ranch facilities and the original building exists today as the Ranch House Saloon.

The Yagers operated Devil's Thumb Ranch as both a working ranch and dude ranch until 1972. They introduced cross-country skiing in the winter of 1975-1976. Dick Taylor, a 1964 Olympic cross-country team member, designed 35 kilometers of the area's Nordic trails.

The Ranch was well known as a Nordic destination, but one without many amenities or niceties. The current owners purchased it in 2001, saving it from a group of developers who planned to fill the valley with residences and a golf course. They immediately began making improvements to the facilities, all the while impacting the land as little as possible.

The span crossing the Colorado River on State Highway 9 southeast of Kremmling is known as the Kimball Bridge.  It honors the memory of William H. Kimball who carried the mail over Berthoud Pass from Empire to Hot Sulphur Springs by foot, winter and summer.  Kimball was born in Maine and accepted the Middle Park mail contract in 1875.  Although reportedly nearly blind, Kimball traveled on snowshoes all winter carrying a backpack of mail weighing 70-105 pounds, day and night, at least once a week.

In  1884, Kimball established a flat bottom ferry over the Colorado River near the spot where the bridge now stands.  Before that time, no wagons could cross at that area.  With the addition of the ferry, load of game meat and fish could be taken up the Blue River to be traded for much needed staples. 

Kimball never married and lived at a nearby ranch until his death in 1909.

The unrest and hard feelings between the Indians and settlers in Middle Park gave rise to an inevitable conflict the last week of August, 1878. About forty Utes, led by Piah and Washington, started to set up camp in William Cozens’ meadow, near Fraser, taking fence poles to make fires. Cozens drove them off, telling them to replace the poles and leave. The Utes moved down valley about five miles to a spring not far from Junction Ranch (named for the junction of the Rollins Pass and Berthoud Pass wagon roads).

There, Johnson Turner, who leased that land, became increasingly uneasy as the Indians were drinking heavily and expressing anger that Ouray given away their land in treaties with the white man. They wanted Turner to pay them for the hay he was cutting. They tore down his fences for firewood, turned their 100 horses into his meadow, and set up camp. They also laid out a race track on drier ground about a mile way.

Turner complained to the sheriff, Eugene Marker, who rounded up a posse of men, intending to remove the Indians or at least convince them to move on. Accompanying him, on September 1, were Frank Addison, a transient prospector, John Stokes, T.D. Livingston, and Frank Byers.  The posse found only women and children at the camp, since the Ute men were at the race course. Marker, the sheriff, ordered the encampment searched for firearms and when the Ute men returned, an angry confrontation ensued. 

Tabernash and Frank Addison exchanged threats, and Tabernash jumped from his horse and snatched one of the guns piled on the ground. Frank Addison immediately shot him. Tabernash tried to pull his rifle from its scabbard, but that it became entangled, and Addison then fired twice more. Tabernash slumped over the neck of his pony, which ran away through the willows. Apparently Addison recognized Tabernash as the Indian responsible for the killing several of his companions while trapping furs on Grizzly Fork in North Park six years earlier. 

After this bloodshed, the posse persuaded the rest of the Utes to leave, after they buried Tabernash’s body in a shallow grave. No one was ever sure where Tabernash was buried. There was a rumor that the slain Tabernash was buried in a draw not far from Junction Ranch, but when the Grand County Historical Association excavated the site, nothing was found.

A day later, September 3, on a Ranch near Kremmling, Abraham Elliott was shot while cutting wood, and his horses stolen.  In response, the posse moved north in the direction of the White River Reservation. 60 Utes met the posse, and explained that the culprits were Piah and Washington, neither of whom was a part of the White River band.  Ultimately, the Utes signed a council report, returned horses stolen from the Elliott ranch, while the  ranchers returned guns confiscated from the Utes at Junction Ranch.  The matter was considered legally settled, but outrage and fear continued among the settlers and the Utes of the area.

In 1902, E.A. Meredith, chief engineer for the Denver & Salt Lake Railroad, named the town that had grown up with the building of the railroad, after the slain Ute, Tabernash.

On June 4^th, 2004 an armored D-9 Caterpillar was used by disgruntled Granby businessman Marv Heemeyer in a rampage that caused an estimated $5 million in damage and left part of the town of Granby in rubble. Heemeyer's slow-moving, 90 minute demolition, fueled by his anger at local officials and business owners who supported construction of a cement batch plant, left 13 buildings demolished or damaged and ended when he committed suicide inside the cab that he had welded shut. The buildings targeted included the town hall, the library, the electric company, a bank, the newspaper and the home of the former mayor. The town of Granby was spared any human injuries or loss because of the complete evacuation of the town through the reverse 911 system and many local law enforcement officers who went door to door to warn the townspeople. The town of Granby immediately launched fundraising efforts to offset the losses suffered by targeted businesses and citizens and the destroyed buildings were mostly rebuilt by the following year.