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ACKNOWLEDGEMENTS
TheadvicebyDaveMcClung (UniversityofBritishCo-
lumbia) and Toralv Berre (Norwegian Geotechnical Insti-
tute) is gratefully acknowledged. Colin Johnston (Univer-
sity ofCalgary) provided technical support and reviewed
a previous version of the manuscript. Thanksfor logistical
support at Rogers Pass to Roger Beardmore, Mt. Revelstoke
and GlacierNational Parks. Finally,it is a pleasure to thank
Bruce Jamieson (University of Calgary) for many stimulat-
ing discussions. During his visit to Canada the author was
supported in part by the Natural Sciencesand Engineering
Research Councilof Canadathrougha CanadaInternational
Fellowship.
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