For what purposes? How many people are in the party? For the purposes of making any kind of living or farming, that's basically nothing. It's enough to build a house for an extended family with a workshop or two, but not much more. Considering the land is stated to be of incredibly low quality (mountainous, rocky, and tainted), and it doesn't seem too much by any stretch. Heck, depending on context, this can be downright insulting, the kind of thing a landed noble might use to ensure its obvious which of their vassals was liked the least.