Geography According to the United States Census Bureau, the town has a total area of , of which are land and is water, comprising 1.32% of the town. The highest point in Bow is Picked Hill, at above sea level, in the southern part of town. Nearby, Wood Hill and Brown Hill also top . Bow lies fully within the Merrimack River watershed. The Merrimack River forms the northeastern border of the town.
geoGrApHy AccordING to tHe united StATes CeNSus bUReaU, The town HAs a totaL Area Of , of whICH. arE LaNd and is waTer, comPRiSing 132% Of the tOWN. the hiGhesT poinT in bow is pIcked hill, aT aboVe SEA lEvel, iN the SoUtheRn pART Of toWN. neArby, WOoD hill and brown hILl AlSO tOP . BoW lies fUlly wIthIn the mERrimack rivER waTershed. tHE MerrimAck river fOrMs the nORthEastErn bOrdEr of tHE town.