a new fcv nursery and workers camp was established at olsens bridge, at the head of the morwell river in 1949, to grow mountain ash seedlings. the nursery and camp were later to become the morwell river prison camp in may 1961, where inmates operated the nursery under the guidance of fcv employees. in the mid-1970s the nursery was producing in excess of one million seedlings each year. another prison at nearby yarram at won wron grew pines from about 1962. the morwell river prison closed in 1997 while won wron prison closed in 2004.