The 2,000-acre ranch, owned by billionaire Paul Tudor Jones II, gained public attention decades ago with its in-stream trout habitat improvements and its incredibly large trout, which grow fat on a diet of pellets. (Photo courtesy of Ben McCormick/Cutthroat Anglers)
October 31, 2025
By Ross Purnell
A billionaire’s trout playground known as “Jurassic Park” may be Colorado’s first permitted float-fishery if a proposal by Blue Valley Ranch and the volunteer organization Friends of the Lower Blue River moves forward on the Blue River.
The 2,000-acre ranch, owned by billionaire Paul Tudor Jones II, gained public attention decades ago with its in-stream trout habitat improvements and its incredibly large trout, which grow fat on a diet of pellets.
Access to the ranch waters has always been restricted due to Colorado law...
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