Anyone know, is it possible and/or permitted to bring a smallish (20 ft) camper into Bigelow Preserve for camping?

Trout brook campsites..off West Flagstaff Rd.school street.Stratton, ME..I know for sure..On flagstaff lake at least 6 campsites that can accommodate.14 days at a time..I added the campground to Google..so if you Google map it should show you exactly how to get there.. https://www.google.com/search?client=ms-android-americamovil-us-revc&ei=6oA-XdXzNeqzggepuIKACw&q=trout+brook+campsite+stratton+maine&oq=trout+brook+campsite+stratton+maine&gs_l=mobile-gws-wiz-serp.3...27538.37354..39391...0.0..0.126.1396.0j12......0....1.........0i71j35i304i39j30i10.bAryDv23Vio#lkt=overview&trex=m_t:lcl_akp,rc_f:nav,rc_ludocids:11056930299100538783,rc_q:Trout%2520Brook%2520Campsites,ru_q:Trout%2520Brook%2520Campsites

There's a spot by the dead river, north side of Flagstaff lake that has spots big enough to fit a camper.