. ▁ ▁References ▁ ▁Category : H istor ic ▁districts ▁on ▁the ▁National ▁Register ▁of ▁Historic ▁Places ▁in ▁Georgia ▁( U . S . ▁state ) ▁Category : National ▁Register ▁of ▁Historic ▁Places ▁in ▁Gre ene ▁County , ▁Georgia ▁Category : G reek ▁Rev ival ▁architecture ▁in ▁Georgia ▁( U . S . ▁state ) ▁Category : V ict or ian ▁architecture ▁in ▁Georgia ▁( U . S . ▁state ) <0x0A> </s> ▁T reg ur tha ▁Down s ▁is ▁a ▁ham let , ▁near ▁G olds ith ney ▁in ▁the ▁parish ▁of ▁St ▁Hil ary , ▁Corn wall , ▁United ▁Kingdom ▁and ▁is ▁the ▁name ▁of ▁a ▁mine ▁opened ▁in ▁ 1 8 8 3 . ▁ ▁The ▁foundation ▁stone ▁for ▁a ▁new ▁engine ▁house ▁was ▁laid ▁on ▁ 2 4 ▁August ▁ 1 8 8 2 . ▁The ▁found ations ▁and ▁base ▁of ▁the ▁ ▁long , ▁ ▁wide ▁and ▁ ▁high ▁building ▁was ▁built ▁of ▁gran ite ▁blocks ▁from ▁a ▁Lud g van ▁quar ry , ▁with ▁the ▁rest ▁of ▁the ▁structure ▁built ▁of ▁stones ▁from ▁nearby ▁Tre v ab yn ▁quar ries . ▁ ▁from ▁the ▁engine ▁house , ▁a ▁ ▁high ▁stack ▁with ▁walls ▁ ▁thick ▁at ▁ground ▁level , ▁tap ering ▁to ▁ ▁at ▁the ▁top , ▁was ▁built ▁from ▁the ▁same ▁stone , ▁to ▁give ▁dra ug ht ▁to ▁four ▁large ▁bo ilers ▁which ▁supplies ▁steam ▁for ▁the ▁ 8 0 - inch ▁p ump ing ▁engine . ▁The ▁engine ▁was ▁made ▁at ▁Co pper house