Kind of sketchy. The DOC has this stated on there web site .
- http://www.maine.gov/doc/parks/programs/parkrules.html1. The possession and/or use of firearms or weapons is prohibited in all areas between May 1 and September 30, except where hunting is allowed during this period. Firearms or weapons may be transported across the Restricted Zone of the Allagash Wilderness Waterway, between May 1 and September 30, provided they are securely and completely enclosed in a cover, fastened in a case, or dismantled in at least two pieces in such a manner that they cannot be fired unless the separate pieces are joined together.
But if you follow the statutes that they use to make these rules , you'll find they have been repealed etc .
There is conflict with state law vs DOC rules etc and the best bet is to call DOC themselves and then the state AG as to what is /isn't allowed for weapons carry in state parks .
Personally , I carry (concealed) within the state park areas .