Final answer:
The uplift of the Rockies and isostatic depression of the crust in the Paleogene Period influenced the current landscape of the Black Canyon National Park.
Explanation:
The significant geological process that influenced the current landscape of the Black Canyon in the Paleogene Period is the uplift of the Rockies and isostatic depression of the crust. This process led to the formation of the canyon and the exposure of ancient rocks, shaping the unique geology of the area.
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