[Greenbuilding] Needing advice regarding outdoor ants

[Racheli Gai]

Hi all,
My cohousing community (in Tucson, Arizona) has a compost
pile.  It's been hard to tend to it because the area is full of 
ferocious
ants.
I have a vague feeling that someone once recommended a good website
which offers "natural" solutions for such problems.

Any and all advice (along green lines) will be very much appreciated.
Thanks,
Racheli.