ff ort s ▁have ▁included ▁impro ving ▁stream ▁habitat ▁and ▁removing ▁non - native ▁species . ▁ ▁See ▁also ▁Fish ing ▁in ▁Wy oming ▁ ▁Notes ▁Cit ations ▁ ▁S ources ▁▁ ▁Wy oming ▁Fish ▁& ▁Game ▁Commission ▁ ▁Further ▁reading ▁▁▁ ▁Colorado ▁River ▁cut th ro at ▁tr out ▁Category : C old ▁water ▁fish ▁Category : F resh water ▁fish ▁of ▁the ▁United ▁States ▁Category : F ish ▁of ▁the ▁Western ▁United ▁States ▁Category : Fa una ▁of ▁the ▁North western ▁United ▁States ▁Category : Fa una ▁of ▁the ▁South western ▁United ▁States ▁Category : Fa una ▁of ▁the ▁Rock y ▁Mountains ▁Category : Color ado ▁River ▁Category : Green ▁River , ▁Wy oming ▁Colorado ▁River ▁cut th ro at ▁tr out <0x0A> </s> ▁In ▁Col onial ▁times ▁the ▁Spanish ▁Empire ▁di vert ed ▁significant ▁resources ▁to ▁fort ify ▁the ▁Chile an ▁coast ▁as ▁consequence ▁of ▁Dutch ▁and ▁English ▁ra ids . ▁The ▁Spanish ▁attempts ▁to ▁block ▁the ▁entrance ▁of ▁foreign ▁ships ▁to ▁the ▁eastern ▁Pacific ▁proved ▁fruit less ▁due ▁to ▁the ▁failure ▁to ▁sett le ▁the ▁Stra it ▁of ▁Mag ellan ▁and ▁the ▁discovery ▁of ▁the ▁Dra ke ▁Pass age . ▁As ▁result ▁of ▁this ▁the ▁Spanish ▁settlement ▁at ▁Ch ilo é ▁Arch ip el ago ▁became ▁a ▁centre ▁from ▁where ▁the ▁west ▁coast ▁of ▁Pat ag onia ▁was ▁protected ▁from ▁foreign ▁powers . ▁In ▁face ▁of ▁the ▁international ▁wars ▁that ▁involved ▁the ▁Spanish ▁Empire ▁in ▁the ▁second ▁half ▁of ▁the ▁ 1 8 th ▁century ▁the ▁Crown ▁was ▁unable