SEATTLE — A federal judge ordered a halt on Friday to more shipments of immense loads of oil field equipment through a national forest in north-central Idaho, pending a broad review of effects on the route.

The review will be conducted by the United States Forest Service in consultation with the Nez Perce Indians, whose tribal rights and lands near the forest route were central to the judge’s ruling.

The case was brought by the Nez Perce tribe and an environmental group, Idaho Rivers United, charging that the Forest Service had failed to enforce its own rules and standards in protecting the forest and a river corridor through which a first shipment, known as a megaload and bound for Canada’s tar sands oil fields, was sent last month. A second shipment was scheduled for next week. The loads are more than 250 feet long and weigh about 644,000 pounds.

“The plaintiffs are not seeking damages; they are seeking to preserve their treaty rights along with cultural and intrinsic values that have no price tag,” Chief Judge B. Lynn Winmill of Federal District Court in Boise wrote in his preliminary injunction order, siding with the tribe.