One of America's Most Iconic Overland Routes Just Lost Its Federal Buffer

The U.S. Department of the Interior transferred 1.4 million acres of federal public land surrounding Alaska's Dalton Highway to the State of Alaska on May 6. The conveyance ends fifty years of federal protection on the country flanking one of North America's iconic overland routes and clears the way for an industrial mining road and a long-stalled natural-gas pipeline.

The conveyed land sits north of the Yukon River and surrounds the haul road from there nearly to the Brooks Range, an unbroken stretch of boreal forest and Arctic tundra that the BLM has managed as a five-mile protective buffer around the Dalton Highway and the Trans-Alaska Pipeline since the early 1970s. It is the country that gives the haul-road trip its character: caribou range, salmon-bearing rivers, Dall sheep country, and a major piece of the largest unbroken public wildland remaining in the United States.

The state of Alaska, which has pressed for title to the corridor for years, has been clear about what it intends to do with it. Two long-contested projects are queued: the Ambler Road, a 211-mile private mining route through the southern Brooks Range that would serve a copper, zinc, and lead district held primarily by Canadian and Australian mining companies, and the Alaska LNG pipeline, a megaproject that has been proposed in various forms for more than a decade to carry North Slope gas to a tidewater export terminal and that has yet to secure the financing or offtake commitments to break ground.

A coalition of ten conservation and Alaska-based groups condemned the transfer. It arrived while the same coalition's March 2026 lawsuit over the underlying revocation of federal protections is pending in U.S. District Court in Anchorage. The plaintiffs say the Interior Department violated four federal statutes, including the Alaska Native Claims Settlement Act, when it opened the corridor in February without environmental review or public hearings.

The transfer is consistent with a broader pattern. The Trump administration and Congress have moved over the past year to roll back protections on millions of acres of federal land in several states. Congress used the Congressional Review Act in October 2025 to overturn the BLM management plan that governed the Dalton corridor, the same legislative mechanism it used last month to strip protections from Minnesota's Boundary Waters, where a Chilean copper-mine proposal sits immediately upstream of the wilderness. A separate Congressional Review Act effort led by Utah Senator Mike Lee targets the Grand Staircase-Escalante National Monument.

The Dalton Highway itself remains open. What changed is the legal status of the land on either side of it.

What was protected, and what changed

The corridor had been federally managed since the early 1970s. Two Nixon-era Public Land Orders, 5150 (1971) and 5180 (1972), kept the land closed to state selection and to mineral entry while the BLM administered a five-mile-wide protective corridor around the haul road and the Trans-Alaska Pipeline.

On Feb. 25, 2026, the Trump administration issued Public Land Order 7966, partially revoking those two orders and opening roughly 2.1 million acres in the corridor to state selection and to mining claims. The state immediately filed for title, and the May 6 conveyance is the result.

The administration cast the transfer as a victory for domestic energy production. "This decisive action puts Alaska at the forefront of American Energy Dominance," Secretary of the Interior Doug Burgum said in the May 6 release. "President Trump is delivering on his commitment to unleash Alaska's vast resources—advancing the Alaska Liquefied Natural Gas project, the Ambler Road, and the Trans-Alaska Pipeline."

Alaska Governor Mike Dunleavy, quoted in the same release, called the transfer "a leap forward in advancing Alaska's ability to responsibly develop its resources."

Neither of the projects the administration named is anywhere near construction. The Alaska LNG pipeline has been proposed in various forms for more than a decade and has cycled through multiple owners and federal reviews without producing a binding buyer or developer commitment. The Ambler Road has been in federal permitting fights for years; the Biden administration's BLM in 2024 issued a finding recommending the road not be built. The Trump administration reversed that finding and has since pursued the corridor transfer that removes the central federal-management obstacle.

What it means for the haul-road trip

The Dalton runs 414 miles from a junction with the Elliott Highway north of Fairbanks to Deadhorse, near Prudhoe Bay. The Alaska Department of Transportation maintains the highway itself, and the BLM continues to administer the road right-of-way. Travelers will not see signs change at the road's edge on June 1.

What changes is everything past the shoulder.

The land that gives the Dalton its character, including the unbroken caribou range east and west of Coldfoot, the salmon-bearing rivers crossing the road, and the boreal forest that opens into Arctic tundra after Atigun Pass, is now state land. Neither the Ambler Road nor the Alaska LNG pipeline happens overnight. The road has been in permitting fights for nearly a decade and the pipeline has been in proposal status longer than that. Both still need their own approvals.

In the near term, the practical changes overlanders should expect:

The state has authority to permit mining claims and surface use on land that was previously off-limits to both. The first wave will be staking and exploration, not industrial activity.
Federal protections that backed subsistence priorities for Alaska Native communities along the corridor are gone. State law treats subsistence as one user group rather than a federally protected priority.
The BLM's five-mile management corridor, the buffer that kept industrial activity off the road's visual frontage, is the central legal question now in court.

The Alaska Department of Natural Resources is running a public process called the Dalton Highway Corridor Public Access process, aimed at identifying and addressing impacts to public access on the newly conveyed land. That process is the front door for anyone who wants the state to hear from Dalton travelers directly.

What the lawsuit is about

On March 10, 2026, ten conservation and Alaska-based groups sued the Interior Department in U.S. District Court in Anchorage, asking the court to vacate the February revocation. The case is being argued by the nonprofit law firm Trustees for Alaska on behalf of the Northern Alaska Environmental Center, Alaska Community Action on Toxics, Alaska Wildlife Alliance, Alaska Wilderness League, Center for Biological Diversity, Earthworks, National Parks Conservation Association, Sierra Club, The Wilderness Society, and Winter Wildlands Alliance.

The complaint alleges the Interior Department violated four federal statutes when it issued PLO 7966 without environmental review or public hearings: the Alaska Native Claims Settlement Act, the Alaska National Interest Lands Conservation Act, the Federal Land Policy and Management Act, and the National Environmental Policy Act.

"These public lands orders should never have been revoked without a thorough environmental review, public accountability, and meaningful consultation with the communities the most directly affected," Krystal Lapp, board president of the Northern Alaska Environmental Center, said in the lawsuit announcement.

Matt Jackson, Alaska senior manager for The Wilderness Society, told the Anchorage Daily News on May 6 that the transfer hands lands over "for the benefit of foreign mining companies." Anneka Williams of Winter Wildlands Alliance has said the Ambler Road would intersect the migration routes of three caribou herds.

The plaintiffs have also flagged a previously unusual entanglement of public and private interests in the corridor. "On behalf of the federal government, the administration recently bought shares in Trilogy Metals, the mining company that would profit from the damaging Ambler road that would subsidize their speculative mine," Aaron Mintzes, deputy policy director at Earthworks, said in the lawsuit announcement. The plaintiffs frame that share purchase as evidence the federal government is no longer a neutral steward of the corridor it just conveyed away.

The transfer occurred while the lawsuit was pending. The plaintiffs have not stated whether they will seek a preliminary injunction to undo the conveyance itself, though the underlying case continues.

What's likely next

Three timelines run in parallel.

The court case. A ruling at the trial-court level on the legality of PLO 7966 is the central legal question. If the plaintiffs win, the revocation could be vacated and the underlying conveyance to the state called into question. Appeals would follow either way. None of this resolves quickly.

The state process. The AK DNR access process runs independently of the federal litigation. Comments submitted there are the most direct path for public-land users to put their position on the record.

Permitting on Ambler and LNG. The Ambler Road needs its own permits, as does Alaska LNG. The land transfer removes one of the larger legal obstacles to both projects, but does not by itself authorize construction.

How to weigh in

The state's public-access process for the conveyed land: dnr.alaska.gov/mlw/dhcpa. Check for an active comment window and submit at the link.
The state's Ambler Road project page: dnr.alaska.gov/mlw/ambler-road.
The Trustees for Alaska case page (filings, status): trustees.org.

If you have driven the Dalton and have a substantive view on access and impact, the AK DNR process is where that view counts.

How we reported this

This article draws on the following primary sources, accessed between May 6 and May 11, 2026:

U.S. Department of the Interior, "Interior Transfers 1.4 Million Acres in Dalton Utility Corridor to State of Alaska" — doi.gov press release, May 6, 2026 — the conveyance announcement, with statements from Secretary Burgum, Gov. Dunleavy, BLM Alaska Director Kevin Pendergast, and AK DNR Commissioner-designee John Crowther.
Federal Register, Public Land Order No. 7966 — federalregister.gov, Feb. 25, 2026 — the order partially revoking PLOs 5150 and 5180.
Trustees for Alaska, Complaint filed March 10, 2026 — trustees.org, complaint PDF — the legal challenge to PLO 7966 in U.S. District Court for the District of Alaska.
National Parks Conservation Association — npca.org, March 10, 2026 — plaintiffs list, statutory grounds, and statements from the ten suing organizations.
Anchorage Daily News, Alex DeMarban — adn.com, May 6, 2026 — corroborating reporting and Wilderness Society / Center for Biological Diversity reaction.
Alaska Department of Natural Resources, Dalton Highway Corridor Public Access process — dnr.alaska.gov/mlw/dhcpa — the state's public process for access impacts.
Alaska Department of Natural Resources, Ambler Road project — dnr.alaska.gov/mlw/ambler-road — the state's project page for the proposed mining road.
Field & Stream, Travis Hall — fieldandstream.com, May 7, 2026 — context on the October 2025 Congressional Review Act vote that overturned the BLM Resource Management Plan, and on the hunting and angling coalition opposed to the Ambler Road.