Noel and Felicity Cossins are the owners of Demon Valley Wildlife Refuge, a property located approximately 15km east of Tenterfield. The sanctuary is a recognised Wildlife Refuge (through an agreement with the NSW Office of Environment and Heritage) which is currently used as a wildlife sanctuary and macropod rehabilitation and release site, for general flora and fauna rehabilitation, as well as being a home.
The sanctuary covers approximately 303.5 hectares primarily made up of wet scelrophyll forest, with patches of subtropical rainforest. The property has not been grazed by hard-hoofed animals for at least 15 years.
Wildlife abounds on Demon Valley Wildlife Refuge, with known species including eastern grey kangaroos (Macropus giganteus), antechinus, bandicoots, koalas (Phascolarctos cinereus), brushtail (Trichosurus vulpecula) and ringtail (Pseudocheirus peregrinus) possums, spotted-tailed quolls (Dasyurus maculatus), grey-headed flying foxes (Pteropus poliocephalus), hopping mice (Notomys spp.), dingoes (Canis dingo), sugar gliders (Petaurus breviceps) and short-beaked echidnas (Tachyglossus aculeatus), as well as various species of frogs, snakes and birds.