the orographic features of a region
the scientific study, or a physical description of mountains
one of the subdivisions of a coastal frontier
section
a fictional region of space designated for navigational or governance purposes.
a field of economic activity
A fixed, continuous section of the track, such that sectors do not overlap but all sectors make up the whole track.
A toothed gear whose face is the arc of a circle.
part of a circle, extending to the center; circular sector
an area designated by boundaries within which a unit operates, and for which it is responsible
zone (designated area).
an instrument consisting of two rulers of equal length joined by a hinge.
An area of a crag, consisting of various routes
fixed-sized unit (traditionally 512 bytes) of sequential data stored on a track of a digital medium (compare to block)