Cover Image Credits: Comparison of proxy (filled circles) and simulated (shaded) δ¹⁸O_p prior to (A) and during uplift and southward propagation (B-D) of the Eocene North American Cordillera. The uplift scenarios represent time slices and paleotopography corresponding to >49 Ma (B), 48–39 Ma (C), and 38–28 Ma (D). Simulated (black font) and authigenic mineral (red font) high-elevation δ¹⁸O_p are shown for comparison. See article by Feng and others in this issue, p. 613–648.