If your dogs are like mine, allergic to just about everything, requiring a very specific diet and you cannot find what you need at the big box stores, check out Olsen's Grain.
Olsen' Grain carries many organic brands. As far as the prices go, they are quite reasonable. The food that Lilly eats, is around $10 - $12 less than the big box stores.
F.Y. I. Olsen's is closed on Sunday.
2250 North Stevess Boulevard
Flagstaff AZ 86004
For convenience, I do occasionally go to PetSmart for eye solution and things. PetSmart is located right next to Safeway Supermarket off Milton. PetSmart offers Puppy/Dog training classes too.
1121 South Plaza Way
Flagstaff, AZ 86001