Related Clues:
- Long, narrow hilltop
- Narrow crest
- Narrow hilltop
- Raised edge
- Narrow elevated strip
- Convolution eg in the ear
- Missing the start of board game, where pressure is high
- Ruffles chip feature
- Where soldiers are about to dig madly between furrows
- Hog's back
- Fingerprint line
- Clear Germany of high pressure
- Klingon forehead feature
- Fingerprint ridge
- Narrow raised band on a surface