In 1986 , the MWRR leased .
In 1986 , the MWRR began operating trackage owned by the Burlington Northern Railroad between the towns of Butte and Garrison , Montana , a distance of 52 miles ( 84 km ) .
In 1986 , the MWRR leased and began operating trackage owned by the Burlington Northern Railroad between the towns of Butte and Garrison , Montana , a distance of 52 miles ( 84 km ) .