Paul Tudor Jones Trade Removes Public Access to Lower Blue River

Aspen —The water in the Lower Blue River runs cold and clear, a Gold Medal trout fishery that has drawn anglers from across the state for decades. But stand on the bank near Kremmling today, and the view is changing. The last three publicly owned parcels along 15 linear miles of the river are gone, swapped away in a deal that left the public with less access than before.

Is this what federal land trades are supposed to look like?

That’s the question Rosenberg raises in a new opinion piece for the Vail Daily, arguing that while federal land exchanges are meant to serve a public purpose — enhancing recreation, managing resources — they often end up benefiting private interests instead. The Yosemite swap, where a developer gained direct resort access to the park, made national headlines in late August. But the same pattern is playing out closer to home, in the watershed between Aspen and Glenwood Springs.

Two of three active land-exchange proposals in that corridor would skip standard environmental review and public comment. One of them, finalized in 2025, is already done. The Bureau of Land Management traded away nearly two miles of riverfront access along the Lower Blue. In return, the public got some marginal hunting grounds and a river “park” that confines all riverfront recreation to a three-quarter-mile stretch of the Blue.

The deal was initiated by billionaire Paul Tudor Jones II, owner of the 25,000-acre Blue Valley Ranch in Grand and Summit counties. His rationale was consolidating his holdings. He and his consultants had close ties to the nonprofit Friends of the Lower Blue River, which pushed the exchange as a win for conservation. The ranch owner’s well-funded advocacy drowned out concerns from anglers and locals about access and transparency.

Colorado Wild Public Lands, a Basalt-based land exchange watchdog, filed an administrative protest against the deal. In their filing, they summed it up: “Immensely valuable public lands are to be traded away for restrictive-access easements and non-guaranteed infrastructure improvements.”

The Blue Valley Ranch offered easements that kept riverbank access open for floaters on a limited basis. But the language in those easements lets the owner revoke them and close off the river entirely. Colorado gives people the right to float navigable rivers, but access stays severely limited because touching a landowner’s riverbed or bank counts as trespass. With publicly owned access to Colorado’s rivers such a scarce commodity, privatizing BLM access to this fishery is a huge loss for the public.

The part everyone skips past is the process. Federal land trades are supposed to go through a public process. Environmental review. Public comment. A chance for neighbors to weigh in before the deal is locked. In the Blue Valley case, none of that happened the way it should have. The public found out after the fact, when the easements were already signed and the riverfront was already handed over.

And that matters because land trades are permanent. Once the deed is transferred, the access is gone. You can’t undo a land swap the way you can undo a policy decision. The riverfront that belonged to the public for generations is now private property, and the only reason floaters can still get to the water is because the owner of Blue Valley Ranch decided to allow it. For now.

Rosenberg’s argument isn’t that every land trade is bad. Some of them work. Some of them genuinely improve recreation access, consolidate fragmented parcels, or protect sensitive habitat. But the ones that work are the ones where the public purpose is real, where the process is transparent, and where the benefits actually reach the people who use the land. The ones that fail are the ones where a private party initiates the deal, where the public gets a sliver of the value, and where the process is rushed or skipped.

The Blue Valley swap fits the second category. It was initiated by a private landowner. It benefited that landowner by consolidating his holdings. And it skipped the standard process for environmental review and public comment. The public got a river “park” with a three-quarter-mile section of access. The landowner got 15 linear miles of riverfront and the ability to control access to a Gold Medal fishery.

That’s not a fair trade. That’s not a public purpose. That’s a private interest dressed up as a conservation win.

The water in the Lower Blue still runs cold and clear. The trout are still there. But the banks belong to someone else now, and the only reason you can get to the water is because that someone else decided to let you. For now.