identified from the Fil de Cassons area, hence reaching this point at the event; too old for the Dendrochronology line but confirming the above carbon dating. Flow System After the slide most of the water escaped through the upper section of the debris. There are several examples of rivers disappearing in the Alps and also in Scotland. The lakes in the debris area still behave in this way such as Caumasee. The Ilanz lake existed some 1000 to 2000 years before the water cut through the debris, creating the Gorge. Sightseeing The place Dutjen above Valendas is opposite and gives a good overview. The aerial cableway from Flims onto Cassonsgrat takes you to the tear-off edge of the landslide. There is various hikes to this ridge as well. One route uses the ascent via Val Bargis, probably the nicest ascent although you cannot see the rockslide area before reaching the top. The railway line of the Rhätische Bahn crosses Ruinaulta close to river Rhine. Except for access to the railway stations there is no roads into this area and no parking. A footpath goes for two thirds of the gorge, the last bit is being built in 2010/2011. Connections lead out of the gorge. In Conn on the debris there is a viewing platform in the shape of a common swift, overlooking Ruinaulta. Walking there you will encounter a little artificial stream that ancient farmers built to get water to some fields in the area as there is no natural surface water. There is river rafting on the Rhine. References Notes Albert Heim: Der alte Bergsturz von Flims 18. Jahrbuch des Schweizer Alpenklub 1882-1883 p. 295-309 [BERGSTURZ-GEBIETE DER SCHWEIZ, PROFILE] [Kartenmaterial] / Alb. Heim. - Zürich: Kunstanstalt J.C.Müller, Abt.Kartogr.Hofer, 191.. [000450082] G. Hartung: Das alte Bergsturzgebiet von Flims, Zeitschrift der Gesellschaft für Erdkunde. Berlin (19) 1884 Dr. Julius Weber: Klubführer; Geologische Wanderungen durch die Schweiz (II), 1913 S. 162-173 Seesedimente auf der Flimser Bergsturzmasse: ein neuer Ansatz zur Datierung der grössten Massenbewegung der Alpen (~ 9490 - 9460 cal. y BP): Flims/Laax, Graubünden, Schweiz / Gaudenz Deplazes. Zürich; 2005.. 140 S.: Ill. + 4 Falttaf.. [005083370] Emil Kirchen: Wenn der Berg stürzt: das Bergsturzbegiet zwischen Chur und Ilanz - Chur [etc.]: Terra Grischuna, cop. 1993. [000943845] Zur Hydrogeologie des Bergsturzgebietes im Raum Flims / Y. P. Bonanomi.. . [et al.]. - Bern: Landeshydrologie und -geologie, cop. 1994. (Geologische Berichte /