here is a list of all the registered gymnastics clubs in maryland, find the ones in your area and call/check out their websites for more info and stuff about tramping/open workouts. the USAG directory is everyone's best bet for finding a place to tramp
the place myself and three of the people i ride with go to is a world class olympic gym. they have like three olympic trampoline guys there, shows us doing our misty's rodeos double backs and then theres those guys doing like...i dont even know what they are but they make us look dumb.
....bump for what? i can pretty much guarantee the only ski/snowboard dedicated tramp facilities are woodward at copper and the like in PC. i live in boulder and go to a gymnastics gym all the time to tramp and there are always other skiers/riders doing the same thing. most gyms have open workout times for people to come in.
"clinical studies show that if you act g or afterbang and you are not high, you are faking it." -bpalmer