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In the Interior of British Columbia debris slope failures have been frequently noted to occur at marked transitions in slope gradient, often termed \ll gentle over steep slopes \gg. Steady state and transient groundwater modelling analyses were conducted using SEEP/W. The result from the groundwater modelling was coupled with both limit equilibrium analysis and finite element slope deformation models. A second component of the current research program is the field characterization and the rheological modelling of runout associated with open slope debris flows. Field data from Vancouver Island was used to conduct a back-analysis with the code DANW of specific failure to determine their rheological input. The results of these analyses are compared against published debris flow analyses data.