<explorers></p><ul><li>Found in 1973 by <ahref="../../others/gsab/index.htm"><spanlang="fr">Groupe Spéléo Alpin Belge</span></a> under the name T3, but not pushed to any depth.</li><li>Rediscovered in July 1976 by <spanlang="fr">J.M.Piron</span> and explored from 12th to 23rd of July by <spanlang="fr">A.C.Toulon, S.C.Toulon, Lou Darbon & Spéléo Ragaie</span> to a depth of 708m. Later sources refer to this group as 'an unheard of group of <spanlang="fr">"Spéléos Provençaux"'.</span></li><li>The same group in 1977 discovered the two lower entrances, using them to explore to the bottom at -913m.</li><li>The Austrian expedition of 1985 set out to connect <spanlang="de">Feuertalsystem</span> to <ahref="55.htm"><spanlang="de">Raucherkarhöhle</span></a> and found a large horizontal passage, but no connection.</li></ul><p></explorers>
<underground_description>From the <spanlang="fr">Quelli</span> entrance, pitches p8, p19, p83, p33, p24, p17, p5, p33, p24, p9, p33, p27, p103 lead to -400m. Here one reaches a vast passage going up and downhill. The downstream passage emerges at the top of an 84m pitch. Below this a winding canyon interspersed with small pitches gives onto a 15m pitch and the end of exploration in 1976 at -708m.</p><p>The lower entrances lead by large phreatic passages to pitches which drop into a further large horizontal level which undulates between -410m and -500m. At -497m, this links to the main vertical system from <spanlang="fr">Quelli.</span> Using these lower ways in, exploration reached a sump at -913m in 1977. Following the large phreatic level away from <spanlang="fr">Quelli</span> goes for about a kilometre before breaking into the side of a colossal shaft at -414m. This is a 211m pitch to a choke at -625m. There is a possible way on across this shaft, which is, however, 20m in diameter.</underground_description>
<equipment></equipment>
<references></p><dl><dt>78.2012</dt><dd><cite>(GSAB) <spanlang="fr">Spéalp</span> 1 (June 1977) pp 33-49</cite>, <b><spanlang="de">Totes Gebirge</span>: <spanlang="fr">Description des principaux gouffres de la zone ouest du massif</span></b>, <spanlang="fr">Jean Claude Hans & Etienne Degrave</span><br/><ahref="../../others/gsab/en/782012.htm#id117">English Translation</a><br/><ahref="../../others/gsab/fr/782012.htm#id117"lang="fr">En Français</a></dd><dt>78.2013</dt><dd><cite>(GSAB) <spanlang="fr">Spéalp</span> 2 (1978) pp 66-67, survey</cite>, <blang="de">Feuertalsystem</b>, <spanlang="fr">Jean Claude Hans</span><br/><ahref="../../others/gsab/782013.htm"lang="fr">En Français</a></dd></dl><p>The description is translated mainly from these references by Andy Waddington and Jill Gates.</references>
<notes></p><ul><li>The Austrian expedition of 1985 found a 3km horizontal passage, which brought the total length of the system to 15km.</li><li>In early 1997 the length was given as 19808m <spanlang="de">(Markus Wiesinger,</span> personal comm.)</li></ul><p></notes>
