It was during his career in the military that Mac McPherson picked up what he admits is a dirty habit.It is just so filthy sometimes, he says.That dirty habit? Picking up trash along the roadways.Watch the full video of this sto ry below: Super Senior: Mac McPherson is making his mark keeping roadways cleanPeople cant believe that we have this much trash out here, he says while stooping to pick up a piece of litter.Hes picked up thousands and thousands of pounds over the years.All the beautiful scenery and then youve got all this litter all over the place. You see people out picking but there is just not enough. So, I just had to get involved, McPherson says. McPherson is doing his best to keep a two-mile stretch on Interstate 90 near Zoo Drive clean that hes adopted as part of the Adopt a Highway Litter Control program.Its in my blood. Even when my wife and I are traveling in our camper, well pull off at rest stops and that and Ill get my bag and picker out and clean up a little bit, McPherson says with a smile.During his 26 years in the Navy, his habit seemed to follow him wherever he traveledIceland, Spain, and Alaska, where he and his fellow veterans picked up nearly 100,000 pounds of trash.You name it, Ive found it. About the only thing I havent found is a body. And some people tell me you havent gone off the road far enough, he says. Since moving to Montana a few years ago hes picked right up where he left off.I actually finished with 5,600 pounds all of last year, he says.McPherson also places wreaths in the veterans cemetery, and of course keeps an eye out for any litter he spots.A guy with a dirty habit helping keep Montana clean."Its a habit of mine. Like I said, its a dirty habit but I do it, he says.Click here to nominate someone for Q2s Super Senior segment. ...read more read less