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28:
439:, where a 3,000 lb (1,400 kg) decoupled test and a 1,100 lb (500 kg) coupled test would be carried out in andesite rock at a depth below surface of 1,700 ft (520 m) and the results compared. The charge sizes were chosen so that if the decoupling worked as predicted, the seismic signals would be similar in intensity.
396:
Ltd began work on both the south and north sides of the hill to create a tunnel which would be 2 miles (3.2 km) long. The southern portal was at Silver Hill, and that at the north was near a small mine called
Excelsior. However, due to the toughness of the underlying bedrock, progress was costly
401:
and lengthened the tunnel running south to meet it. However, this too was proving too costly, and wound up in 1885, before it was half-way complete. Several later attempts were made to extend the
Excelsior Tunnel, but by 1938, it was still only 2,400 feet (730 m) long.
397:
and slow, and ceased about a year later. In 1881 a new company named Kit Hill Great
Consols took over the setts of Kit Hill United and Excelsior mine. They deepened the North Engine Shaft to 112
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tests, where charges of 3,000 lb (1,400 kg) would be detonated in 30 ft (9.1 m) diameter cavities at depths of 800 ft (240 m) in a salt mine in
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Phase A: Small charges fired in a 6 ft (1.8 m) diameter cavity in granite and shale at depths of 100 to 300 feet (91 m) in the
Excelsior Tunnel at Kit Hill.
380:
mine (which worked westwards towards Kit Hill). This was a very early mine, and evidence shows it may have started in the 17th century: it closed in 1885.
110:
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233:, and consists of some 400 acres (152 hectares), making it the most dominant landscape feature in East Cornwall. Kit Hill is the highest point in the
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Kit Hill Summit Mines (which included a windmill near the present stack). These mines and shafts started about 1826: Kit Hill United closed in 1864.
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barrows. The area around these is maintained by a ranger and volunteers, who also generally keep the vegetation on the hill under control.
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270:. Kit Hill Country Park has a high wildlife population including deer and badgers, rabbits, rare moths and butterflies.
255:. This caused the formation of many mineral deposits that were mined extensively in the 18th and early 19th centuries.
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Some remnants, mainly the granite blocks, of the line can be found on the northern slopes of the
Country Park site.
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217:(which includes the hill and surrounding areas), was given to the people of Cornwall in 1985 to mark the birth of
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Construction of The Tamar, Kit Hill & Callington
Railway started in 1864. The name was later changed to the
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262:, Kit Hill is probably the best viewpoint in the southeast of Cornwall, with views of the Tamar valley,
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took over operations, and used the tunnel for underground explosions. The activities were part of
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The ornate mine chimney, now clad in a range of transmitters and aerials, on top of Kit Hill.
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The
Country Park is steeped in mining history. Metals extracted included
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The Mines & Mineral
Railways of East Cornwall & West Devon
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679:
Operation
Orpheus - Atomic Energy Authority(Excelsior Tunnel)
326:= "Stallion Hill", which is usually interpreted as being at
613:(2nd ed.). Fowey: Cornwall Editions Ltd. p. 68.
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Plymouth, Devonport and South
Western Junction Railway
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reports that in 835 (corrected by scholars to 838 AD)
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List of place-names agreed by the MAGA Signage Panel
273:On the summit of Kit Hill is an artificial fort (a
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146:), at 334 metres high, dominates the area between
383:South Kit Hill Mine was worked from 1856 to 1884.
186:can still be seen on the hill. It is one of five
374:East Kit Hill Mine was worked from 1855 to 1909.
413:, and the Kit Hill events were the first part:
527:Place-names in the Standard Written Form (SWF)
243:The hill was formed in the same way as nearby
8:
333:Other notable artifacts on Kit Hill include
476:connected with it. It amalgamated with the
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456:'s river frontage, past Kelly Quay &
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503:section still survives as part of the
464:quarries, along the northern flank of
288:, built in the style of a low-walled
7:
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559:
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588:Exploring Cornish Mines - Vol. 4.
238:Area of Outstanding Natural Beauty
14:
637:. Truro: D. Bradford Barton Ltd.
190:in Cornwall, the four others are
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26:
633:Barton, Denys Bradford (1964)
420:Phase B: Participation in the
1:
450:East Cornwall Mineral Railway
746:Military history of Cornwall
741:Bronze Age sites in Cornwall
549:Cornish Language Partnership
162:. The word 'Kit' comes from
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174:(and not specifically the
48:334 m (1,096 ft)
736:Country parks in Cornwall
488:and onto the junction at
392:In 1877 a company called
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258:As the highest point of
58:171 m (561 ft)
407:Atomic Energy Authority
388:Atomic Energy Authority
280:) and a folly built by
431:Phase C: The tests at
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674:Kit Hill Country Park
468:to below Kit Hill at
405:However, in 1959 the
367:The main mines were:
303:Anglo-Saxon Chronicle
221:, by his father, the
215:Kit Hill Country Park
731:Marilyns of Cornwall
702:50.51887°N 4.29360°W
314:defeated an army of
247:by the intrusion of
229:). It is managed by
698: /
611:Cornwall: A History
707:50.51887; -4.29360
604:See, for example:
567:. Cornwall Council
543:2013-05-15 at the
532:2013-05-15 at the
38:Highest point
726:Hills of Cornwall
505:Tamar Valley Line
411:Operation Orpheus
253:sedimentary rocks
204:Hensbarrow Beacon
170:, a reference to
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428:, United States.
422:Operation Cowboy
231:Cornwall Council
223:Duke of Cornwall
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545:Wayback Machine
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394:Kit Hill Tunnel
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251:into overlying
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227:Prince Charles
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569:. Retrieved
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310:king of the
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235:Tamar Valley
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200:Carnmenellis
184:sparrowhawks
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15:
705: /
501:Bere Alston
490:Bere Alston
472:, where an
312:West Saxons
268:Bodmin Moor
245:Bodmin Moor
196:Brown Willy
192:Watch Croft
164:Old English
158:, England,
152:River Tamar
64:Parent peak
720:Categories
690:50°31′08″N
571:6 February
565:"Kit Hill"
514:References
497:Gunnislake
470:Kelly Bray
462:Gunnislake
458:Drakewalls
339:Bronze Age
324:Hengestdun
148:Callington
127:Landranger
54:Prominence
693:4°17′37″W
426:Louisiana
335:Neolithic
275:Civil War
210:Geography
144:Bre Skowl
85:Geography
44:Elevation
609:(2004).
541:Archived
536: :
530:Archived
486:Calstock
460:and the
454:Calstock
444:Railways
363:tungsten
292:castle.
264:Dartmoor
180:Buzzards
176:red kite
156:Cornwall
150:and the
136:Kit Hill
119:Topo map
111:SX375713
94:Cornwall
90:Location
21:Kit Hill
437:Cumbria
399:fathoms
320:Cornish
316:Vikings
296:History
278:redoubt
140:Cornish
105:OS grid
79:Marilyn
74:Listing
641:
617:
592:
484:above
359:copper
355:silver
345:Mining
308:Egbert
482:Tamar
290:Saxon
249:magma
639:ISBN
615:ISBN
590:ISBN
573:2013
495:The
361:and
337:and
318:and
300:The
266:and
202:and
182:and
168:kite
166:for
68:None
499:to
435:in
351:tin
322:at
178:).
129:201
722::
581:^
556:^
547:.
507:.
492:.
357:,
353:,
330:.
240:.
206:.
198:,
194:,
160:UK
142::
124:OS
96:,
623:.
575:.
551:.
365:.
225:(
138:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
