The Territorial legislature defined the boundaries and county seats for the West Slope in 1861.  Geographic knowledge of the Colorado mountains was somewhat limited at that time.  North Park (a name now synonymous with Jackson County) was an Indian hunting ground and little was known about it.

A boom started with the discovery of gold and silver at Teller City in 1879.  North Park was considered to be part of Grand County, and now there was property to assess and tax.  The Grand County road tax in North Park for 1881 applied only to males between the ages of 21 and 45.  They had to either pay $3 in cash or do two day's work on the roads. John Mills, a Teller City resident who acted as an attorney for mine owners, served as a Grand County commissioner and was one of the commissioners killed in the July 4, 1883 gun battle at Grand Lake.

As ranches became established and more mineral deposits were discovered, the Larimer County commissioners began to speculate that the "Snowy Range" that defined the western boundary of Larimer County was the Park Range on the west side of North Park rather than the Medicine Bow Range.  This opinion soon degenerated into a dispute between Grand and Larimer counties, ultimately ending up in court. In 1886 the Colorado Supreme Court ruled that North Park was part of Larimer County.

A trip to the county seat in Fort Collins was a considerable undertaking.  If everything ran on schedule it was possible for travelers to leave Walden on the morning stage, catch a train from Laramie to Cheyenne, another train from Cheyenne to Greeley, still another from Greeley to Fort Collins, and arrive at the county seat before closing hours the following day.  The fares amounted to a significant expense.  It was probably more common for a North Parker to travel to Fort Collins in his wagon, take care of business, and come home with a wagonload of provisions.  The trip by wagon took three to four days each way.

As the population of North Park grew, so did the desire to split from Larimer County.  In 1908 the Loveland newspaper stated that Larimer County was too big and advocated a new county with Loveland as the county seat.  The Walden newspaper agreed that the county was too big but felt the wrong division line had been picked, pointing out that "A Loveland man can get to the county seat in three hours anytime, but it takes a North Park man three days most of the time."

Ranchers resisted early efforts to set off the area west of the Medicine Bow Range into a county of its own as they carried the largest part of the tax burden and felt their taxes would increase if a new county was established.  But by 1908 there was general agreement within the Park that it was time for court and administrative offices to be more conveniently located.

The total valuation assessed in 1908 of North Park property by Larimer County was $771,776, which generated $16,979 of revenue.  The salaries of some of the paid officers of the new county was estimated as follows:

     Assessor                                                    $800

     County School Superintendent                   $800

     Water Commissioner, 2 districts                $1000

     County Commissioners                             $1000

Even adding in salaries for the sheriff and county clerk it appeared quite likely that the new county could be operated efficiently without a tax increase and the proposal to create "North Park County" had nearly unanimous support from North Parkers.  The bill passed the legislature easily in April 1909, with a name change to Jackson, and was quickly signed into law on May 5 by Governor Shafroth.

While North Parkers were eager to sever their legal ties to Larimer County in 1909, they clearly weren't ready to give up the pleasures of offered by a nip of the bottle.  Like most frontier areas, North Park had a significant number of single men who liked to occasionally get together and enjoy a few drinks with their friends.  Walden was the center of socialization.  According to an 1899 newspaper article, Walden residents worried about the "toughs" who came to town to "drink barbed-wire bitters and then shoot up the place."

In addition, local married men sometimes frequented the bars when they could have been spending more time at home helping out with domestic chores.  As a result, a strong temperance movement soon divided the community.  One of the two local newspapers, the North Park Union, endorsed the temperance movement in early 1902 and soon found itself the target of a boycott by both advertisers and subscribers.  Although the editor declared it a "boycott of no great magnitude", the paper had a new owner/editor within a month.  The issue of whether Walden should be wet or dry was on the 1902 ballot.  By a very decisive majority, voters decided Walden would continue to be wet.

Just before the 1906 election, the Walden newspaper criticized the local Republican Party bosses for providing a lot of free whiskey in every North Park precinct on election day, and urged North Parkers not to sell their vote for a drink.  The temperance movement enjoyed its first victory when it combined forces with the local church and convinced the businessmen of Walden to close their stores on Sundays.  The closing did not stand in high favor with ranchers.  "When a man can't buy axle grease for his wagon when it runs dry and something else for himself when he runs dry, it is time to call a halt," they declared.  Quite a number of the ranchers started going through to Laramie for their provisions, and the Sunday closing rule was abandoned six weeks after it was implemented.

When news reached Walden in early 1909 that the bill creating Jackson County had cleared the legislature, the newspaper reported that the town was moved to the point of a merry celebration.  The brass band marched, guns were fired, and at daybreak "the women, as becomes their sex, were among the few who were sober."  A few weeks later news that the Governor had signed the bill was cause for another celebration.  The newspaper reported that, "the air about town clouded up and filled with burnt powder and raucous vocalizations.  The festivities continued in the evening with flying anvils propelled by stick powder . . ." The first hundred years of Jackson County had commenced.

Grand Lake was established in 1879 and incorporated in 1944. It is named for the largest natural body of water in Colorado. In 1867, when only a few people resided near the lake, Major John Wesley Powell (the man whose group first rafted the Grand Canyon) came to explore the possibility of floating down the Grand (now Colorado) River. That summer, Powell, local resident Jack Sumner, and William Byers, founder of the Rocky Mountain News, made the first recorded ascent of Longs Peak from Grand Lake. In the early 1900’s a Yacht Club was formed by enthusiasts who were attracted by the demands of attentive seamanship the lake demanded.

In 1912, Sir Thomas Lipton contributed an impressive cup to be presented annually to the winner of the annual August Regatta. This event still draws skilled sailors to the challenging competition. The town was founded during a very brief mining boom, but because of it's natural beauty, tourism has long been the sustaining feature of it's economy.

The settlement of Radium, on the north bank of the Colorado River in Gore Canyon, was established in 1906, when railroad construction of the Denver and Salt Lake Railroad brought in foreign workers, typically Swedes, Greeks, and Italians. After the rail lines were built, livestock was shipped out and vegetables such as potatoes, peas, and lettuce were grown and picked at the last minute so they could be shipped while still fresh.

Originally the land was homesteaded by the Murgrage and Hoyt ranch families. Railroad passenger service during the winter months was scheduled only three times a week each way but even then, couldn’t always get through. Nonetheless, the “Try Weakly Railroad” service was better transportation than anything residents had ever had before.

The name of Radium was suggested by Harry S. Porter because of the radioactivity found in his mine. The nearby Radium Copper Mine was a large copper producer at one time.

Maintainance workers for Union Pacific, current owners of the railroad, are still based at Radium.

While the origin of the names of many mountains in Grand County has been lost to history, we do know the source of many of the more notable mountains.  The name originations of some mountains of Grand County are as follows:   Adams Peak – Named for either Jay E. Adams who owned a cottage in Grand Lake or Alexander and Louise Adams, original owners of the Grand Lake Lodge.  

Mount Alice – 13,110 ft. – Named in 1911 by request of geologist Dr. William S. Cooper.  Who “Alice” was, was not explained.   Arapaho Peak – Named for the Arapaho Indian tribe who frequented Grand County during hunting season.   Arikaree Peak – Named for the Arikaree Indian tribe by James Grafton Rogers in 1955.   Baker Mountain – Named for John Baker from Indiana, a well known prospector and hunter of the 1850’s and 1860’s.  

Bills Peak – Named after an early settler in the area whose last name was not known.   Bottle Mountain – Named for the bottle shape of the mountain, three miles north of Byers Peak.   Byers Peak – 12,790 ft. – Named for William N. Byers, publisher and editor of the Rocky Mountain News and early promoter of Hot Sulphur Springs.   Mountain Cairns – 10,800 ft. – Named for James Cairns, first storekeeper at Grand Lake.   West Carter Peak and North Carter Peak– Believed to have been named for a member of the original U.S. Geological Survey team.   Cascade Mountain – Also known as Loder Mountain, popularly named for cascading stream.  

The Cleaver – Believed named by early settlers for location between two other peaks.   Coal Mountain – Named for visible coal seam.   Mount Cumulus – 12,725 ft. – Named for cloud formation resemblance.  One of three “cloud” peaks.   Diamond Mountain – Named for rumors of diamonds found there or its shape.  Located four miles East of Muddy Pass.   Mount Epworth – Believed named for a Methodist youth group founded in 1889.  Located east of Rollins Pass.  

Fairview Mountain – Named for scenic view.  Located ½ mile south of Parika Peak.   Mount Flora – Named for fields of flowers on mountain.   Mount George – 12,876 – Named for Dr. R.D. George, a geologist.  Its north spur is Lone Eagle Peak.   Green Mountain – Named for the green trees covering the mountain.   Grouse Mountain – Named for the grouse that inhabit the area.   Hallett Park – 12,713 – Named for William H. Hallett who lived from 1851 to 1947.  The mountain was named in 1887.  

Howard Mountain – Named for John Howard, a prospector.  The mountain was named in 1880.   Mount Irving Hale – Named for Brigadier General Hale who lead Colorado troops in the Philippines during the Spanish American War.  Hale was a member of the first graduating class at Denver High School and won an appointment to West Point.  Camp Hale, near Leadville, was a training site for World War II ski troops and was also named for him.