▁area . ▁American ▁far mers ▁in ▁the ▁area ▁res ented ▁this ▁decision ▁and ▁pushed ▁out ▁the ▁company ▁by ▁developing ▁their ▁own ▁market ▁place ▁and ▁squ atting ▁on ▁company ▁land . ▁By ▁ 1 8 6 5 ▁there ▁were ▁about ▁ 1 5 0 ▁illegal ▁squ at ters ▁on ▁company ▁property ▁who ▁would ▁har ass ▁the ▁liv est ock ▁of ▁the ▁Hudson ' s ▁Bay ▁Company . ▁A ▁few ▁of ▁the ▁far mers ▁ur ged ▁Congress ▁to ▁remove ▁the ▁fort ▁as ▁well ▁as ▁the ▁Pu get ▁Sound ▁Agricult ural ▁Company ▁from ▁the ▁Pacific ▁North west . ▁These ▁conditions ▁made ▁it ▁hard ▁to ▁continue ▁operations ▁in ▁the ▁region ▁so ▁the ▁fort ▁was ▁closed . ▁ ▁The ▁land ▁was ▁up ▁for ▁gra bs ▁once ▁Hudson ' s ▁Bay ▁Company ▁left ▁and ▁many ▁far mers ▁bought ▁the ▁land . ▁In ▁ 1 9 0 6 , ▁Du P ont ▁purchased ▁a ▁ ▁area ▁for ▁construction ▁of ▁an ▁explos ives ▁plant ▁from ▁the ▁far mers ▁as ▁the ▁company ▁was ▁in ▁the ▁midst ▁of ▁expand ing ▁their ▁business ▁to ▁the ▁west . ▁The ▁plant ▁was ▁built ▁on ▁the ▁initial ▁ 1 8 3 3 ▁F t . ▁N is qu ally ▁site ▁and ▁was ▁completed ▁in ▁ 1 9 0 9 . ▁During ▁its ▁nearly ▁ 7 0 - year ▁history , ▁the ▁plant ▁produced ▁dynam ite ▁for ▁the ▁U . S . ▁military ▁as ▁well ▁as ▁for ▁the ▁construction ▁of ▁various ▁civil ian ▁projects ▁including ▁the ▁Grand ▁Cou lee ▁Dam , ▁the ▁Al can ▁Highway , ▁and ▁the