HELENA, Mont. -

 U.S. Sen. Max Baucus is reintroducing his measure to extend conservation protections along the Rocky Mountain Front.
    
Baucus first proposed the Rocky Mountain Front Heritage Act in 2011, but it failed to clear the last Congress. Baucus said he is again advancing the bill.
    
The act would cover a scenic region where the Rocky Mountains meet the plains, stretching north of Lincoln toward Glacier National Park.
    
It would add 67,000 acres of wilderness to the Bob Marshall Wilderness Complex, and designate more than 200,000 acres as a conservation management area that would limit road building.
    
Backers say it aims to protect historic ranching and recreation opportunities.