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COUNTY OF LONDONDERRY. |
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feet.
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1 |
Moneymore |
183
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2 |
Mayola R. bridge; nearly half way between Cookstown and Dungiven |
414
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3 |
Highest part of the road from the bridge on the Mayola R. to Dungnven |
1177
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4 |
Cragnashoack-hill (the Hawk's-hill); the upper line of the sandstone |
1589
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5 |
Cragnashoack mountain: top |
1864
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6 |
Dungiven |
447
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The three following heights were directly referred to Dungiven, and thence calculated above the level of the sea. |
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7 |
Benbradagh-hill; upper line of the sandstone |
903
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8 |
Benbradagh-hill; upper line of the white limestone |
1266
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9 |
Benbmdagh top |
1569
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10 |
The Glebe-house of Garvagh |
440
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The eight following heights have been referred directly to this spot, and thence calculated above the sea. |
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11 |
Broka-bhoy: a swell of gravel-rag on the slope of Coolcuscrehan mountain |
710
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12 |
Coolcoscrehan mountain top |
1292
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13 |
Dunavenny brook; a feeder of Allen water, being the first appearance of the primitive formation on the slope of Cairntogher |
718
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14 |
Cairntogher mountain top |
1600
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15 |
A swampy ground on the south side of Cairntogher; the head of several rivers |
1090
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16 |
Donald hill: upper line of the sandstone |
900
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17 |
Donald hill top |
1399
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18 |
Ballyness limestone quarry: upper line of the limestone 717 |
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19 |
Down-hill: mausolæum of the late Lord Bristol |
255
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20 |
Benyavenagh mountain towards Magilligan point., a complete mass of stratified trap. (rating the limestone at 80 feet.) |
1145
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21 |
Cady-hill; upper line of the white limestone |
604
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22 |
Cady-hill top |
1030
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24 |
Watershead of the road between Coleraine and Newtown-Limavadd |
885
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