Boat Ramps on the Merrimack River

The Merrimack River crosses 2 states, with 39 public boat ramps stretching across roughly 50 miles. Massachusetts has the most access (20 ramps), followed by New Hampshire with 19. Of the 39, 2 have a confirmed launch fee; the rest are free or unconfirmed. Another 4 ramps on the Merrimack River appear to be private, so they're not included here. If you have access to one, it's still listed on its county page and on the main map.