I just Googled Health Food Stores in Montrose, Colorado. Try it! Looks like there are several fine options.
It will depend on your arrival in the Montrose/Ridgewy/Telluride area, but there are several Farmer's Markets as we get into the end of Spring and the time of Solstice. They all have info on-line in one form or another.
Don't know which way you are arriving (flying/driving) but no one should discount the greater Grand Junction area for produce. Actually, the Saturday of Land Rush there is Farmer's Market in Telluride and tons of produce comes up from Grand Junction. I can personally tell you that the Bing Cherries are the BEST
I've ever had.
Having said all that.....
Have you ever in your life eaten a "Killer Flank Steak", or savored a serving of "Sister's Dumplings". TBF Vendors are wonderful and have something for everyone.
Auntie Hope