alt b ys ▁moved ▁their ▁business ▁to ▁Sh el ton ▁in ▁ 1 8 8 0 . ▁ ▁The ▁plant ▁was ▁then ▁taken ▁over ▁by ▁David ▁Stevens , ▁who ▁produced ▁a ▁popular ▁series ▁of ▁Christmas ▁cards ▁that ▁inaugur ated ▁their ▁manufact ure ▁in ▁North ford ▁as ▁one ▁of ▁its ▁major ▁indust ries . ▁ ▁By ▁the ▁early ▁ 2 0 th ▁century , ▁the ▁factory ▁was ▁in ▁decl ine . ▁ ▁It ▁was ▁demol ished ▁about ▁ 1 9 3 5 , ▁and ▁the ▁dam ▁on ▁the ▁Farm ▁River ▁was ▁was hed ▁away ▁by ▁flo oding ▁in ▁ 1 9 7 1 . ▁ ▁A ▁ta vern ▁was ▁then ▁built ▁on ▁the ▁site . ▁ ▁See ▁also ▁National ▁Register ▁of ▁Historic ▁Places ▁list ings ▁in ▁New ▁H aven ▁County , ▁Connecticut ▁ ▁References ▁ ▁Category : National ▁Register ▁of ▁Historic ▁Places ▁in ▁New ▁H aven ▁County , ▁Connecticut ▁Category : Arch ae ological ▁sites ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁Connecticut ▁Category : Build ings ▁and ▁structures ▁completed ▁in ▁ 1 8 5 0 ▁Category : N orth ▁Bran ford , ▁Connecticut <0x0A> </s> ▁Mount ▁Sch um acher ▁() ▁is ▁a ▁mountain , ▁ 1 , 2 3 0 ▁m , ▁standing ▁ 6 ▁na ut ical ▁miles ▁( 1 1   km ) ▁south west ▁of ▁N ils ▁J orgen ▁Pe aks ▁on ▁the ▁west ▁side ▁of ▁A hl mann ▁R idge ▁in ▁Queen ▁Ma ud ▁Land . ▁M apped ▁by ▁Norwegian ▁cart ograph ers ▁from ▁surve ys ▁and ▁air