Comment by brndnhy

Retail political and topographic maps are a relatively small part of the work load of most cartographic studios.

Forestry and petroleum exploration require constant updating and presentation techniques.

Precipitation and drainage maps are extremely useful in agriculture.

Aviation section charts are updated quarterly.

Most vineyards, large farms, and ranches have probably had custom mapping done at some point.

It's actually a pretty fascinating field when you appreciate the breadth of data that is regularly correlated to maps.