6 . ▁The ▁parties ▁then ▁decided ▁to ▁build ▁two ▁cam ps ▁for ▁winter ▁qu arters , ▁establish ing ▁At kin son ' s ▁troops ▁in ▁" C anton ment ▁Missouri " ▁near ▁Council ▁Bl uff ▁and ▁Major ▁Long ' s ▁men ▁at ▁" Engine er ▁C anton ment ", ▁five ▁miles ▁down ▁the ▁river ▁near ▁the ▁western ▁river bank , ▁and ▁half ▁a ▁mile ▁up stream ▁from ▁Fort ▁Lisa . ▁Within ▁a ▁month , ▁the ▁qu arters ▁were ▁substantial ly ▁completed ▁and ▁Major ▁Long ▁returned ▁to ▁the ▁east ▁coast ▁for ▁further ▁orders . ▁ ▁Winter ▁ 1 8 1 9 – 2 0 ▁" C anton ment ▁Missouri ", ▁set ▁along ▁the ▁river ▁bottom ▁below ▁the ▁bl uff s , ▁was ▁short - l ived . ▁The ▁winter ▁of ▁ 1 8 1 9 – 2 0 ▁was ▁very ▁har sh , ▁and ▁a ▁short fall ▁of ▁government ▁contract ors ▁left ▁the ▁g arrison ▁without ▁sufficient ▁supplies . ▁The ▁soldiers ▁suffered ▁w ides p read ▁sc ur vy ▁( due ▁to ▁poor ▁nut r ition ▁and ▁lack ▁of ▁vit amin ▁C ), ▁which ▁claimed ▁the ▁lives ▁of ▁over ▁ 2 0 0 ▁of ▁the ▁ 1 , 1 2 6 ▁men ▁that ▁first ▁winter . ▁Est im ates ▁of ▁the ▁civil ian ▁death s ▁is ▁possibly ▁as ▁high ▁as ▁double ▁the ▁military ▁dead ; ▁no ▁records ▁were ▁kept ▁of ▁their ▁losses . ▁Finally , ▁in ▁the ▁spring ▁of ▁ 1 8 2 0 , ▁the ▁Missouri ▁River ▁flo oded ▁C anton ment ▁Missouri