The major streets are the following: Main Street, Broadway Street.
For bars/cafes you have 1 places with "Lazy B Bar & Cafe" for example.
In term of post offices you can find 1 location in the region (like "Augusta Post Office").
About schools, 2 possibilities exist (like "Montana Wilderness School", "Augusta Public Schools").
Are you looking for an apartment for sale/rent? Or interested by a house? You can check that on Zillow.