Bretz RV in Boise sells propane for .99/gal! Such a deal when compared to other dealers. Believe there is a Bretz in Montana as well. Just an fyi. Other pricing in my locale 2.99-5.50!
I have never understood why there is usually such a discrepancy in propane pricing within a small area, but prices here range from around $1.50 to over $4.