▁of ▁the ▁area ▁between ▁Mar ulen ▁and ▁G oul burn ▁and ▁improved ▁communication ▁between ▁Sydney ▁and ▁the ▁southern ▁settlement s . ▁ ▁The ▁Tow r ang ▁Stock ade ▁also ▁has ▁state ▁historical ▁significance ▁as ▁a ▁physical ▁rem nant ▁of ▁stock ades ▁constructed ▁in ▁response ▁to ▁the ▁use ▁of ▁chain ▁gang s . ▁The ▁apparent ▁har sh ness ▁of ▁life ▁at ▁the ▁stock ade ▁and ▁numbers ▁of ▁conv ict s ▁based ▁there ▁reflected ▁implementation ▁of ▁the ▁British ▁Government ▁requirements ▁for ▁har sh er ▁pun ishment ▁in ▁the ▁col ony ▁to ▁rein force ▁the ▁threat ▁of ▁transport ▁as ▁pun ishment ▁in ▁Britain , ▁and ▁Dar ling ' s ▁use ▁of ▁chain ▁gang s ▁for ▁conv ict s ▁not ▁suitable ▁for ▁pla cement ▁with ▁sett lers . ▁ ▁The ▁place ▁is ▁important ▁in ▁demonstr ating ▁a est h etic ▁characteristics ▁and / or ▁a ▁high ▁degree ▁of ▁cre ative ▁or ▁technical ▁achiev ement ▁in ▁New ▁South ▁Wales . ▁ ▁The ▁bridge , ▁cul ver ts ▁and ▁road ▁alignment ▁have ▁land mark ▁qual ities . ▁They ▁have ▁ability ▁to ▁provide ▁insight ▁into ▁the ▁nature ▁of ▁conv ict ▁life , ▁labour ▁and ▁early ▁road ▁building ▁methods ▁and ▁the ▁bridge ▁and ▁cul ver ts ▁demonstrate ▁a ▁fine ▁level ▁of ▁work mans hip ▁in ▁stone . ▁ ▁The ▁place ▁has ▁potential ▁to ▁yield ▁information ▁that ▁will ▁contribute ▁to ▁an ▁understanding ▁of ▁the ▁cultural ▁or ▁natural ▁history ▁of ▁New ▁South ▁Wales . ▁ ▁The ▁stock ade ▁and ▁road ▁form ations ▁have ▁state ▁significance ▁for ▁their ▁ability ▁to ▁provide ▁evidence ▁of ▁conv