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Past deglacial ice-sheet reconstructions have generally relied upon discipline-specific constraints with no attention to the determination of objective confidence intervals. Reconstructions based on geophysical inversion of relative sea-level (RSL) data have the advantage of large sets of proxy data but lack constraints from ice-mechanics. Conversely reconstructions based on dynamical ice-sheet models are glaciologically self-consistent, but are dependent on poorly constrained climate forcings and sub-glacial processes. As an example of a much more constrained methodology, we present a high-resolution glaciologically-self-consistent deglacial history for the North American ice complex calibrated against a large set of RSL and geodetic data. The history is derived from ensemble-based analyses using the 3D University of Toronto glacial systems model and a new high-resolution ice-margin chronology derived …