Well, though that's true enough, who formed the Club and why?
The answer that it was formed by a group of Off-Road enthusiasts who enjoyed modifying their XJs and taking them Off-Road.
Who formed the Colorado chapter, and where did they come from? A number were members of other Off-Road forums and a number came from the COXJ group, which again, was primarily made of Off-Road enthusiasts.
Colorado is also blessed with one of the largest inventories of trails in the US. The trails are public, and they are doable with few exceptions, by a moderately modified XJ. Events are what keeps clubs together, and events that share the predominant interest of the Members, much more so.
Though there are some Members who want to restore a numbers matching XJ, others which want to Autocross them, and some which either drag race, or endurance race them, and some who just want to lift them to make them appear tough, are those activities that a majority of CO Chapter Members partake? Or are they more apt to be seen on a Forest Road on the weekend on their way to a camp site for the weekend, or on the trail with a host of other XJs?
And back on topic. My XJ replacement was a Volvo XC90 with a V8.