A Wyoming judge says he has no judicial authority to stop a federal plan to reduce snowmobile traffic in Yellowstone National Park this winter, according to an Associate Press article.

September 16's ruling by U.S. District Judge Clarence Brimmer may make it possible to limit snowmobiles to 318 in the park each day.

This would cut the allowance in more than half of the original 720 snowmobiles.

"The 318 cap that the proposed rule would create, which is more than a 50 percent decrease, would have a devastating effect on visitation this winter," said Jack Welch,  from the BlueRibbon coalition, in an August AmSnow news report.