Hi, Bruce,
While I am retired now and before I got my three geography degrees, I grew up on the Olympic Peninsula of Washington. We basically had Olympic-Peninsula-only maps because that's all we ever needed unless we were going to Seattle which, even 50 years ago, required a map for anybody's first couple of trips.
In graduate school at UW (the one in Seattle), my roommate, for part of that time, was from Michigan's UP (a tiny place called Covington) and, except for summers when her family ran a fishing camp in Idaho, she also usually had partial maps portraying Michigan's UP by itself. From this small sample of two, I wonder whether people who grew up in geographically limited areas were the main users of geographically limited maps. I learned from spending two periods of time teaching in Denmark that Greenlanders often only had maps of their particular "valley" or "village". I'd be curious to learn whether other people who grew up in other geographically limited areas such as islands or isolated mountain valleys are also likely to be familiar with geographically limited maps.
virginia hetrick (still wondering what effect my parents' having all those Nat Geo maps that came with their wedding gift subscription to Nat Geo has had on me)