Solve these clues to fill the grid.
- A system of high tension cables by which electrical power is distributed throughout a region
- 2 Across
- A diagrammatic representation of the earth's surface (plural)
- 3 Across
- Someone who travels into little known regions
- 6 Across
- Something that is oriented ___
- 9 Across
- Military supplies
- 11 Across
- Navigational instrument for finding directions
- 12 Across
- Structure consisting of an artificial heap or bank usually of earth or stones
- 1 Down
- Something visible that by association or convention represents something else that is invisible (plural)
- 4 Down
- A short note recognizing a source of information or of a quoted passage
- 5 Down
- Something that is oriented ___
- 7 Down
- A line drawn on a map connecting points of equal height (plural)
- 8 Down
- A detailed critical inspection
- 10 Down
- Tool for weighing things; also a set of musical notes
- 13 Down