ABC Ballarat has put out an article that describes the terrain in which Samantha disappeared. They say it is a place where a person is unlikely to get lost, due to the interconnecting trails and roads that are all over the place.
Located 10 minutes from Ballarat's CBD, it is not a bushland you would typically get lost in.
It is not uncommon for people to be driving through the area.
Gold prospectors often comb the park in search of a lucky find, sightseers can see Ballarat from its lookout, and it is home to Australia's first trail constructed for people with dementia.
Joy riders speed down dirt tracks throwing up clouds of dust, rubbish is dumped in the scrub and stolen cars are set on fire here.
Historical mine shafts and shallow holes from Ballarat's gold exploring days are also dotted through parts of the bushland.
Police say these unused mines, scattered dams and the thick and rugged bush create challenging terrain to canvas.
Dozens of police, SES and townspeople have scoured this park near Ballarat over the past week. Here is what's known about where the missing 51-year-old is thought to have gone running.
www.abc.net.au