Geodiversity Atlas—Iowa State Index

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    • Locations: Effigy Mounds National Monument
    • Offices: Geologic Resources Division
    view of river and hanging rock overlook

    Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park.

    • Locations: Herbert Hoover National Historic Site
    • Offices: Geologic Resources Division
    hoover birthplace cottage

    Each park-specific page in the NPS Geodiversity Atlas provides basic information on the significant geologic features and processes occurring in the park. Links to products from Baseline Geologic and Soil Resources Inventories provide access to maps and reports.

Last updated: June 16, 2020

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