There is one page of the Delorme Gazeteer of New Hampshire that most of us do not have completed as it only has a sliver of New Hampshire on it, and that part is the Connecticut River. This puzzle will test your knowledge of that page.
Decide what that empty page is and use those coordinates to find the final.
MAP 28 N45 02.407 W 70 26.729
MAP 42 N44 02.407 W 71 26.729
MAP 24 N43 02.407 W 72 26.729
MAP 21 N42 02.407 W 73 26.729