What Does "Bin" Refer To in Lindemans Wines?

[quijote]

OK, maybe the answer is obvious....perhaps Bin #65 and other such designations refer to actual bins in which the wine is stored?

But while I was looking at the Lindemans website, "Bin" is listed as an option under wine regions (or some such category).

So does "Bin" refer to a place--a wine-growing region--in Australia? Or is a bin just a bin here?