Fig. 16: The "Place de la Concorde" where three glacier streams (Aletschfirn, Jungfraufirn, Ewigschneefeld) create the big Aletsch glacier. The ice here is about 800-900m deep. — Nikon D200, Nikkor AF-S 28-70mm 1:2.8D, Polfilter, 21. April 2007 Nikon D200; Δt=1/640 s; f=28 mm; f/5.0; ISO 200; 21 April 2007 17:57:25
