There's really not a lot of talk here about free range beef. There is about eggs, though the availability of those is widespread, but I haven't heard anyone really talk about free range beef. And here's why.
Cattle in Western Australia are raised on stations (station = ranch). And it turns out, in WA, an average station is about 1 million acres (1500 sq miles) with about 20,000 head of cattle. So that's 50 acres per cow.*
Yep, WA certainly doesn't lack space. Oh, and cows are mustered (herded) using helicopters.
*I know there's more to ethical animal raising than the amount of space you give an animal to roam around, but that's a whole different discussion.