@Smokin Joe @roamer_1
Believe it or not, we have Huckleberries down here in East Texas. Not a lot and the deer love them and generally beat us to them.
We're about as far as you can get from salt water, here, on the North American Continent. Temps are brutal in winter, as a rule, and hit triple digits in the summer. Not sure why they never made it out here, but it may be a flyway thing, too (since birds 'dropped' my little chokecherry grove here). But, for whatever reason, be it virtue of our climate zone (3) or the migratory habits of fowl, they just aren't present, naturally. I'd be willing to take on an 'invasive species', though.....
(added) But I just checked, and according to the botanists, I'm about 4 growing zone numbers away from them surviving here, and the soil here tends toward too alkali with the pH here tending a little above 7, and the huckleberries preferring something closer to a 5. (Not enough conifers to acidify the soil here, too many sulfates).