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184:. A final exploration in 2001 by a team led by Canadians John Donovan, Jason Morgan, Dan Pach and Australian Warwick M Green (Formally known as Warwick Baggs) pushed the cave from the blockage and discovered the sump at -472 m. This team surveyed and mapped the cave and published their findings with the assistance of Dr Chas Yonge of the
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The 20m wide entrance to Close to the Edge is located in a cliff near the summit of an unnamed mountain, but is hidden by a natural rampart and thus only visible from the air. The entrance shaft is 255 m deep, by far the deepest in Canada, and often sports a 20-metre-long overhanging icicle. This
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The first recorded entrance sighting was in 1985 by cavers in a helicopter supporting a nearby expedition. The following year the cave was explored to a frozen mud and stone blockage at the base of the second pitch at a depth of 263 meters. The blockage was removed in 1994 by a team led by Neeld
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The cave is named for its remarkable cliffside location; a caver standing on the entrance rampart can look down the 255-metre entrance shaft on one side and down some 700 metres to the valley floor on the other. This topographic oddity is also reminiscent of the artwork on the 1972 record album
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length of all passages only totals 967 metres, while its overall depth of 472 metres makes it the fourth-deepest cave in Canada. It is believed that the sump water reappears at Twin Falls
Resurgence some 600 m below the entrance.
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is followed by shafts of 32 m, 17 m, 7 m, 10 m, 10 m, 8 m, 9 m, 68 m, and 9 m, ending at a
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Close To The Edge
Provincial Park and Protected Area
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221:Close To The Edge, Beyond The Abyss
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40:Close To The Edge Provincial Park
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132:Prince George, British Columbia
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130:about 160 km east of
65:967 metres (3,173 ft)
57:472 metres (1,549 ft)
242:Caves of British Columbia
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180:Messler, Jim Hewett and
216:Vol 18 no 2, pp 15 – 19
198:List of caves in Canada
30:Entrance to CTTE, 1986
186:University of Calgary
157:Cave setting and form
224:The Canadian Caver
214:The Canadian Caver
226:No 58, pp 13 – 19
211:Close To The Edge
146:Close to the Edge
106:is a significant
104:Close to the Edge
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19:Close to the Edge
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120:British Columbia
89:Highly technical
44:British Columbia
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116:Rocky Mountains
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149:by the band
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175:Exploration
138:Name origin
252:Wild caves
236:Categories
219:Green, D.
204:References
86:Difficulty
78:Entrances
70:Discovery
192:See also
168:surveyed
36:Location
114:of the
110:in the
94:Hazards
166:. The
124:Canada
62:Length
48:Canada
54:Depth
164:sump
108:cave
73:1985
151:Yes
118:in
97:Ice
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