Mapping the Glacial Geology of the Central Great Lakes Region in Three Dimensions, 1999

Source

Date: 1999
Eras: Modern era
Concepts: geologyhistoriography
Within: Beaver Island archipelago

Summary

This held 1999 USGS Open-File Report documents a state–federal approach to three-dimensional glacial-geology mapping in the central Great Lakes region. It is a provenance source for the regional framework behind modern Quaternary map layers and interpretations.

Evidence and limits

The report establishes the partnership’s stated mapping rationale, regional glacial-terrain framework, and data-integration approach. It does not provide a Beaver Island-specific field observation, subsurface section, map unit, groundwater assessment, or land-use determination.

Use this source to explain the provenance and limits of regional geologic mapping, then use a source with an actual Beaver archipelago study area for any claim about a particular island feature.

Read the document

65 pages, rendered from the held scan.

Mapping the Glacial Geology of the Central Great Lakes Region in Three Dimensions, 1999 — p. 1 — Page 1 of 65R. C. Berg et al., *Mapping the Glacial Geology of the Central Great Lakes Region in Three Dimensions—A Model for State-Federal Cooperation*, U.S. Geological Survey Open-File Report 99-349 (1999).Open the page image · Download this page

Jump to a page — 65 in all

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Sources

R. C. Berg et al., *Mapping the Glacial Geology of the Central Great Lakes Region in Three Dimensions—A Model for State-Federal Cooperation*, U.S. Geological Survey Open-File Report 99-349 (1999).
Held public-domain USGS report describing a regional Illinois–Indiana–Michigan–Ohio mapping partnership and three-dimensional Quaternary framework. It documents regional mapping method and data-integration context, not a Beaver Island map, borehole, soil profile, groundwater result, or island-specific glacial interpretation.
geology · publications · usgs_ofr_99_349
Project provenance sidecar for USGS OFR 99-349.
Records the USGS source URL, retrieval timestamp, checksum, 3,056,304-byte file size, public-domain status, and the project’s provenance-use note. No public copy of this file is known; the archive holds one and can provide it on request.
geology · publications · usgs_ofr_99_349.provenance

Added 2 August 2026. Recent changes

Cite this article

Beaver Island Archive, “Mapping the Glacial Geology of the Central Great Lakes Region in Three Dimensions, 1999”, https://beaverislandarchive.org/documents/usgs-central-great-lakes-glacial-mapping-1999/, accessed [date], citing R. C. Berg et al., *Mapping the Glacial Geology of the Central Great Lakes Region in Three Dimensions—A Model for State-Federal Cooperation*, U.S. Geological Survey Open-File Report 99-349 (1999). (and 1 further source listed on the page).

Last revised 2026-08-02. Fill in [date] with the date you read it — this page is static and cannot know that.

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