Most businesses in the area can be found through the three local chambers of commerce. Lake County, Modoc County and Surprise Valley
Some local businesses of interest maybe Hunters Hot Springs resort where the "official" landing site is for the Umpteenth and where the famous geyser "old perpetual" resides.
Davis Creek Mercantile which is just a short glide south of Sugar Hill is a wonderful store run by local Native American members of the Hewisedawi tribe and features a treasure trove of locally made artifacts as well as all your daily needs, including gas. They also have an excellent resident chef.
The Surprise Cafe The Surprise Cafe in Cedarville has great food and atmosphere as well as wifi.