' s ▁energy ▁for ▁hyd rop ower . ▁The ▁buildings ▁have ▁now ▁largely ▁been ▁converted ▁to ▁other ▁uses . ▁Much ▁of ▁Sun cook ' s ▁late ▁ 1 9 th - century ▁commercial ▁village ▁center ▁has ▁been ▁listed ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places . ▁ ▁Sun cook ▁was ▁once ▁home ▁to ▁the ▁Sun cook ▁Valley ▁Rail road , ▁a ▁short line ▁rail road ▁company ▁that ▁operated ▁north west ▁to ▁Con cord ▁and ▁n ortheast ▁to ▁Bar n st ead . ▁The ▁rail road ▁operated ▁on ▁former ▁Boston ▁and ▁Maine ▁track ▁that ▁was ▁sold ▁to ▁the ▁company . ▁The ▁Sun cook ▁Valley ▁Rail road ▁went ▁bank rupt ▁in ▁ 1 9 5 2 ▁and ▁all ▁its ▁track ▁was ▁torn ▁up . ▁ ▁Geography ▁Sun cook ▁is ▁located ▁in ▁the ▁southern ▁corner ▁of ▁the ▁town ▁of ▁P embro ke ▁and ▁the ▁western ▁end ▁of ▁the ▁town ▁of ▁Allen st own . ▁The ▁Sun cook ▁River ▁runs ▁through ▁the ▁center ▁of ▁the ▁village ▁and ▁forms ▁the ▁boundary ▁between ▁the ▁two ▁towns . ▁The ▁CD P ▁is ▁border ed ▁to ▁the ▁south ▁by ▁the ▁town ▁of ▁Hook sett ▁and ▁to ▁the ▁west ▁by ▁the ▁M err im ack ▁River , ▁which ▁forms ▁the ▁Bow ▁town ▁line . ▁ ▁U . S . ▁Route ▁ 3 ▁runs ▁through ▁the ▁east ▁side ▁of ▁the ▁CD P , ▁leading ▁north west ▁ ▁to ▁Con cord , ▁the ▁capital ▁of ▁New ▁Ham pshire , ▁and ▁south ▁ ▁to ▁Manchester , ▁the ▁state ' s ▁largest ▁city . ▁New ▁Ham