Woolly Bugger Colors for Montana

I was looking for some good colors for the Woolly Buggers for Montana. Mainly black and olive were recommended but also a couple others. 

I started out with just flat black with the woolly bugger and yellow, now on to olive ones but was wondering what other colors would work for Montana.

Started looking and asking, and these colors are pretty solid and standard but some browns, and even dark purples I found as well.

They are a really fun fly to tie!