I live in a rural valley area surrounded by mountains with a population around 40,000 over ~700 square miles. Much of it is agricultural that is being transformed into "ranchettes." There is also three suburban areas where most of the people are.

In the suburban areas, full 1 acre lots range from $150,000 to $250,000 based on location specifics. The lower-end will be on the outskirts and won't have any utilities or view, just scrub brush. The higher end will have at least electricity and modest mountain views.

40 acre lots are a lot more expensive because they're in more exclusive neighborhoods. There are several 40 acre parcels for sale at around $6 million each but some are less.

On the other side of the mountain, about ~30 minute drive, is where the real high prices are. There, a few acres could be $60 million.

I have a quarter acre. I could buy more but it seems like the wrong time.