 A significant change in the fort 's conservation and preservation outlook was its declaration as a Historic Relic under the Aboriginal and Historic Relics Preservation Act in 1972 . Up to then there had been growing awareness of the significance of the site in terms of the state 's colonial heritage . Control of the park was moved to the National Parks and Wildlife Service ( NPWS ) , and the fort and surrounds became designated as Fort Glanville Conservation Park . The National Estate Grants Program provided funds in 1975 for conservation work ; NPWS began this work in the same year and the caravan park boundary was moved southwards . Though the site had long been neglected , there was minimal permanent damage to its structure . During the 1970s reconstruction , much of the stockade was replaced . The replaced timbers are visibly different as they have shrunk significantly with large gaps that are not evident in the original timber . Adelaide City Council agreed to return the 64 @-@ pounder guns and new wheels were made ; replacing those rotted over half a century before . In a ceremony on 2 October 1980 , the 100th anniversary of the guns first firing , one of the 64 @-@ pounders was fired again ; later a commemoration plaque was added to the fort 's flagpole 's base . Shortly after this firing the Fort Glanville Historical Association was formed , and was incorporated in 1981 . Fort Glanville was opened for public visitation in 1981 . 
 A significant change in the fort <a href='null_genetive' title='1'><mark>'s</mark></a>conservation and preservation outlook was its declaration as a Historic Relic under the Aboriginal and Historic Relics Preservation Act in 1972 . Up to then <a href='dey_it' title='2'><mark>there</mark></a> had been growing awareness of the significance of the site in terms of the state <a href='null_genetive' title='3'><mark>'s</mark></a>colonial heritage . Control of the park was moved to the National Parks and Wildlife Service ( NPWS ) , and the fort and surrounds became designated as Fort Glanville Conservation Park . The National Estate Grants Program provided funds in 1975 for conservation work ; NPWS began this work in the same year and the caravan park boundary was moved southwards . Though the site <a href='been_done' title='4'><mark>had</mark></a> long been neglected , <a href='dey_it' title='5'><mark>there</mark></a> was minimal permanent damage to its structure . During the 1970s reconstruction , much of the stockade was replaced . The replaced timbers <a href='drop_aux' title='6'><mark>are</mark></a>visibly different as they <a href='been_done' title='7'><mark>have</mark></a> shrunk significantly with large gaps <a href='null_relcl' title='8'><mark>that</mark></a><a href='negative_concord' title='9'><mark>are</mark></a> <a href='negative_concord' title='10'><mark>not</mark></a>evident in the original timber . Adelaide City Council agreed to return the 64 @-@ pounder guns and new wheels <a href='uninflect' title='11'><mark>were</mark></a> made ; replacing those rotted over half a century before . In a ceremony on 2 October 1980 , the 100th anniversary of the guns first firing , one of the 64 @-@ pounders was fired again ; later a commemoration plaque was added to the fort <a href='null_genetive' title='12'><mark>'s</mark></a>flagpole <a href='null_genetive' title='13'><mark>'s</mark></a>base . Shortly after this firing the Fort Glanville Historical Association was formed , and was incorporated in 1981 . Fort Glanville was opened for public visitation in 1981 . 
A significant change in the fort  conservation and preservation outlook was its declaration as a Historic Relic under da Aboriginal and Historic Relics Preservation Act in 1972 . Up to then it had been growin awareness of tdasignificance of thdaite in terms of the state  colonial heritage . Control of the park was moved to the National Parks and Wildlife Service ( NPWS ) , and the fort and surrounds became designated as Fort Glanville Conservation Park . Thedational Estate Grants Program provided funds in 1975 for conservation work ; NPWS began dis wrk in the same year and the daavan park boundary was moved southwards . Though the sda done long been neglected , it was minimal permanent damage to its structure . durin the 1970s reconstruction , much of the stockade was replaced . The replaced timbers visibly diffrent as they done shrunk significantly with bigass gaps ain't evident in the original timber . Adelaide City Council agreed to return the 64 @-@ pounder guns and new wheels was made ; replacing those rotted over half a century b4 . In a ceremony on 2 October 1980 , the 10da anniversary of the gundairst firing , one of the 64 @-@ pounders was fired again ; later a commemoration plaque was added to the fort  flagpole  base . Shortly after this firing the Fort Glanville Historical Association was formed , and was incorporated in 1981 . Fort Glanville was opened for public visitation in 1981 .