Extent:	Length 4.7km, depth 368m.
Location:	204a	36697E	(52)83700N	1812m altitude
	204b	36688E	(52)83713N	1810m altitude
	204c	36666E	(52)83905N	1836m altitude
	204d	36451E	(52)83882N	1773m altitude
	204e	36618E	(52)83860N	1817m altitude
	204f	36627E	(52)83873N	1821m altitude

The cave is situated on the west side of the col between the Hinterer Schwarzmooskogel and Nieder Augst-Eck. It is currently one of the main areas of exploration for CUCC, who in 2001 established a bivvy site under the stone bridge opposite the entrance.

Access route:The route from Top Camp used since 1999 (probably near optimal) is a cairned path via Wolfhöhle (1623/145) and Laser Point 5, then up to the top of the bare patch of white limestone visible from Top Camp, passing 195 and 196. The path used in 2001 then skirts around the contours to arrive directly opposite the stone bridge after which the cave was named (in previous years a route slightly higher up towards the Hinter was used, which some people still prefer; this is also cairned). Alternatively, the cave may be approached from the summit of HSK - probably the optimal route if you are coming from any of the 161 entrances.

Marking:Tags on both 204a and 204b entrances.

Description

• Entrance and The Near End passages
• Mid-level passages (including Wolpertinger Way)
• No Pain No Gain through to the Colonnade
• Trunk way through Treeumphant Passage to Cave Tree Chamber and beyond
• Swings and Roundabouts area
• Pleasuredome area
• Deep routes via the Ariston Series

Exploration and surveys

Question mark list.

Completed question mark list.

On-line surveys:

• Plan, pre-2002 Expo [511k; approx 2500x3500 pixels, greyscale]
• Plan, pre-2001 Expo [71k; approx 2300x3300 pixels, monochrome]
• Elevation, pre-2001 Expo [22k; approx 1900x2200 pixels, monochrome]
• Plan, pre-2000 Expo [26k; approx 582x783 pixels, greyscale]
• Elevation, pre-2000 Expo [16k; approx 432x586 pixels, greyscale]

Exploration history:

• CUCC 1999 to length 1365m, depth 226m
• CUCC 2000 to 2.5km, depth 368m
• CUCC 2001 to 4.7km, depth 386m

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