▁east ▁of ▁C anton ▁on ▁the ▁hills ▁over looking ▁the ▁Si oux ▁River . ▁The ▁as yl um ▁was ▁closed ▁in ▁ 1 9 3 4 . ▁ ▁The ▁as yl um ▁grounds ▁and ▁buildings ▁were ▁used ▁for ▁a ▁short ▁time ▁by ▁South ▁Dak ota ▁as ▁a ▁pen it enti ary ▁for ▁first ▁time ▁off enders . ▁In ▁ 1 9 4 6 , ▁in ▁what ▁C anton ites ▁refer ▁to ▁as ▁the ▁" second ▁Manh attan ▁P urchase ," ▁the ▁city ▁purchased ▁for ▁$ 1 . 0 0 ▁the ▁ 3 3 7 ▁acres ▁and ▁buildings ▁of ▁the ▁old ▁institution . ▁ ▁The ▁only ▁st ip ulation ▁of ▁the ▁purch ases ▁was ▁that ▁it ▁be ▁used ▁for ▁the ▁w elf are ▁of ▁the ▁community . ▁For ▁a ▁time , ▁the ▁as yl um ▁hospital ▁was ▁used ▁for ▁the ▁C anton - In wood ▁Hospital , ▁but ▁today ▁the ▁old ▁as yl um ▁buildings ▁are ▁gone . ▁ ▁The ▁land ▁is ▁now ▁home ▁to ▁San ford ▁Hospital ▁C anton - In wood , ▁Three ▁R ivers ▁Gun ▁Club , ▁the ▁ 4 - H ▁fair ground ▁and ▁H ia w ath a ▁Country ▁Club ▁and ▁G olf ▁Cour se . ▁ ▁Today , ▁a ▁c emetery ▁for ▁ 1 2 1 ▁patients ▁of ▁the ▁as yl um ▁is ▁located ▁on ▁the ▁original ▁grounds ▁of ▁the ▁as yl um . ▁The ▁National ▁Park ▁Service ▁added ▁the ▁c emetery ▁to ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁ 1 9 9 8 . ▁ ▁Notable