Unless you're puffing Marlboros, options for a spendy dude ranch experience in southwestern Montana get a little scarcer come this spring.

Philip Morris Inc. officials announced Friday the company is buying the Deadrock Crazy Mountain Ranch, an 18,000-acre working cattle and guest ranch near Clyde Park.

After renovations begin this April to double number the of beds, the faux ghost town will be off-limits to everyone but company execs on retreat and those taking part in the tobacco giant's "Ranch Party" promotions.