It might be hard to imagine how Corners of the Mouth and Harvest co-exist in the same tiny town, but Corners is where you won't find the mass marketed items. The cute building houses a great little selection of just about every item you'd ever need on a Mendocino get-away. Upstairs there is a very extensive selection of herbs.

This is a nice, if very small community market in an old barn. All the basic produce, at least 90% organic. Good vegan breads plus some gluten frees. Small bulk section with the basics, few veg/an meat alternatives, as well as butter and spreads, at least one vegan packaged cheese. Basic packaged foods like canned goods, pasta, grains, etc, and a nice little selection of grab and go goodies to munch on, probably 30% of which are vegan.
Though this place is small, you actually can get all your basic grocery needs covered as a veg/an. Large percentage of stores merchandise is organic or sustainable.