That's the 3rd fouth of my property. I divide it up like this:
1.) Big Front Yard (too many tree and lots of squirrels)
2.) Fenced Back Yard (where the dogs live)
3.) Garden, fruit trees, compost bins and pointless expanse of grass (I'm thinking of setting up a v-ball court....haha)
4.) Back pasture (whre the cow lives)

It seems like a lot when mowing, but it's really only 1.67 acres.