| Answer | Crossword Clue |
|---|---|
| isobase | a contour line of equal upheaval of the land |
| Answer | Crossword Clue |
|---|---|
| isobase | a contour line of equal upheaval of the land |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.