| Eastern chain from South to North. | ||||||
| Height of the hill above the level of the sea |
Thickness of the cap of trap. | |||||
| Divis | 1475 | 944 | ||||
| Cave-hill | 1064 | 296 | ||||
| Agnew's-hill | 1450 | |||||
| Slievemish | 1398 | |||||
| Teabuliagh | 1235 | 500 | ||||
| Coolnagopag | 1130 | |||||
| Ballypatrick | 955 | 333 | ||||
| Knocklead | 1820 | 930 | ||||
| Fairhead | 535 | |||||
| Crosshill | 508 | 144 | ||||
| On the Northern Coast. | ||||||
| Croaghmore | ||||||
| Bengore | ||||||
| Pleakin | 354 | |||||
| Cliff above Dunluce | 157 | |||||
| Slieve Ard, the highest point of, the Island of Rathlin |
372 | |||||
| Western chain from North to South. | ||||||
| Benyavenagh | 1145 | 900? | ||||
| Kedy | 1030 | 426 | ||||
| Donald's-hill | 1399 | 399 | ||||
| Benbndagh | 1569 | 363 | ||||
| Cairntogher | 1600 | |||||
| Cragnashoack | 1864 | 275 | ||||
| Slievegallion | 1624 | 165 | ||||
The ridge above Moneymore has not been determined.
