A federal judge on Thursday vacated the U.S. Forest Service’s approval of a massive logging project [to harvest] about 16,500 acres of pine trees in the Custer Gallatin National Forest in southern Montana, just north of Yellowstone National Park. Senior U.S. District Judge Donald Molloy in Missoula, Montana, agreed with a collective of environmental advocates that the U.S. Forest Service failed to meet the requirements of the National Environmental Policy Act by relying on a condition-based management approach, which doesn’t identify the location of the 56.8 miles of temporary roads for the project and, as such, doesn’t adequately consider their impact on “secure habitat” for grizzly bears. Condition-based management defers specific decisions on how to proceed until the Forest Service has conducted field reviews. Here, it means the Forest Service has preliminarily identified areas as suitable for logging without identifying the precise location and size of the area to be cleared…