▁moved ▁to ▁Mountain ▁Green ▁in ▁the ▁ 1 8 5 0 s ▁with ▁permission ▁from ▁the ▁Sim ons ▁and ▁the ▁Native ▁Americans . ▁The ▁settlement ▁was ▁named ▁Mountain ▁Green ▁due ▁to ▁its ▁abund ant ▁green ▁grass . ▁In ▁ 1 8 7 7 ▁the ▁population ▁was ▁about ▁ 1 5 0 , ▁but ▁a ▁number ▁of ▁families ▁left ▁in ▁fear ▁of ▁conflict ▁with ▁the ▁Indians , ▁and ▁the ▁ 1 8 8 0 ▁census ▁showed ▁only ▁ 7 5 ▁residents . ▁ ▁Modern ▁era ▁Ar ound ▁ 1 9 6 0 ▁the ▁Og den - based ▁Brow ning ▁Ar ms ▁Company ▁found ▁the ▁need ▁for ▁a ▁rural ▁test - f iring ▁facility . ▁They ▁purchased ▁a ▁Mountain ▁Green ▁farm ▁in ▁ 1 9 6 1 , ▁and ▁by ▁ 1 9 6 8 ▁Brow ning ▁had ▁re located ▁its ▁executive ▁offices , ▁research ▁and ▁development , ▁sales ▁and ▁data ▁processing ▁to ▁the ▁Morgan ▁County ▁location . ▁ ▁A ▁volunte er ▁fire ▁department ▁called ▁the ▁Mountain ▁Green ▁Fire ▁District ▁was ▁established ▁here ▁in ▁July ▁ 1 9 7 1 . ▁It ▁was ▁started ▁due ▁to ▁a ▁perce ived ▁need ▁for ▁faster ▁response ▁times ▁than ▁the ▁county ▁fire ▁station ▁some ▁ ▁away ▁in ▁Morgan ▁could ▁provide . ▁A ▁separate ▁fire ▁station ▁was ▁built ▁in ▁ 1 9 7 3 . ▁In ▁ 1 9 9 7 , ▁the ▁In sur ance ▁Services ▁Office ▁evaluated ▁the ▁Mountain ▁Green ▁Fire ▁District ▁and ▁gave ▁it ▁a ▁Fire ▁Supp ression ▁R ating ▁Sch edule ▁rating ▁of ▁class ▁ 6