You'll need to carry in everything, as parking is on the main road, but this also helps keep away the fair weather campers. Can be very secluded in winter months, sometimes you're the only person there. First come first serve sites
Rangers keep track so make sure you pay! Great river access, and sturdy bear boxes. Lovely spot. Good access to hikes. Near some short waterfall hikes.
Ive been camping here several times a year with a bunch of guys. We typically go at least once in the summer and once in the dead of winter. Always the foot ball game before the super ball.
Fourth Iron used to be a pay campsite run by the state of the new hampshire. But after a serious winter with lots of snow, flooding and storms in the spring the site was shut down. It was cleaned of debris by local hikers and campers that love the site and eventually "re-opened" but is no longer state maintained.
There is a small parking lot with a sign but other than that its pretty easy to miss. There is a pit toilet so i guess there must be some maintenance? Either way there are maybe 8-10 sites with fire rings. The campground has no amenities and sits directly on the saco river. Its really wonderful all year round and is a good camp point for some amazing hikes in the white mountains.