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Geological Society of Minnesota

Geological Society

of Minnesota

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Geological Society of Minnesota

Road Marker Information

Road Marker Information

Title: LAKE HARRIET REGION
Road Markers

Description:

More Info.

Enter Road Address in your cars GPS:
4145 W Lake Harriet Pkwy, Minneapolis, MN 55419

OR
Enter Geographical Coordinates in your cars GPS:

Degrees Lat Long:      44.927817, -93.308883

Latitude:     44°55’40.1″N
Longitude:     93°18’32.0″W

Go to Google Map

Country: Hennepin County
Where Found:

Located in Minneapolis on the northwest shore of Lake Harriet, near the intersection of West Lake Harriet Parkway and West 42nd Avenue in Minneapolis.  Just west of the picnic table shelter which is next to the food concession stand of Lake Harriet Park.

Marker Number:26
Marker Composition: Stone with Bronze plaques

Text on Marker:

LAKE HARRIET REGION

The continental glaciers spreading over Minnesota during the great ice ages brought vast quantities of rock material from the north to be dumped indiscriminately during the recession of the ice. Old river valleys were filled and belts of hills were formed as conditions changed. The Lake Harriet landscape has such an origin.

Leaving the present channel of the Mississippi River at the Plymouth Avenue bridge, a pre glacial valley runs almost directly south beneath Lake of the Isles, Lake Calhoun and Lake Harriet to the Minnesota River at Bloomington. This valley was mostly filled but not completely obliterated by glacial deposits. The unfilled portions of the valley are now basins, which are filled by lakes perched high on the glacial debris. Lake Harriet lies directly over this ancient valley, its surface 250 feet above the valley’s rocky floor, and is in a setting of hills piled up while the ice front paused here in its final retreat about 10,000 years ago.

Erected by the Geological Society of Minnesota and the Board of Park Commissioners, City of Minneapolis aided by a grant from the Louis W. and Maud Hill Family Foundation. 1955

Region: Metro Region

Date Updated: 20170227

Information Needed:

  1. Marker Images

Condition of Marker: Good
Do it Yourself Region: Metro Area
Verification: Done – Bennyonbeacon@comcast.net

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© 2025 Geological Society of Minnesota - WordPress Theme by Kadence WP

  • Welcome Page
  • Road Markers
  • Members
    • Seminars and Labs
      • Seminar/Lab Calendar
      • Current Year Schedule
      • All Seminars and Labs
      • Directions to Seminars and Labs
    • Fields Trips
      • Field Trip Calendar
      • Help Field Trip Signup
      • Upcoming Field Trip
      • Field Trips Signup
      • Submit Field Trip Suggestions
      • Past Field Trips
      • Waiver of Liability
      • Waiver of Liability PDF
    • Calendars
      • Seminar/Lab Calendar
      • Field Trip Calendar
    • Member Information
      • Print a Membership Form
      • Enter in your membership form, then print
      • Membership application/renewal via credit card
      • Membership Help Document
    • Media Library
      • Media Library Order/Display
      • Help Using Media Library
      • Suggested Geology YouTube Videos
    • GMS T Shirts and Caps
      • Buy T Shirt and/or Cap
      • Help buying T Shirt/Cap
    • Newsletters
      • Display Newsletters
      • NLs from the MN Geological Survey
        • Newsletter JPG Large
        • Newsletter JPG Small
      • Contributing to the Newsletter
  • Link
  • Outreach
    • For Teacher
    • State Fair
      • State Fair Booth Rock Specimens List
  • About
    • History
    • Board
      • Display Board Minutes
      • Board Information
      • GSM presidents
    • Organization Information
      • Articles of Incorporation
      • By_Laws
    • Mission
    • Administrator Login
      • Administrator Login Help
  • Contact
    • Ask GSM
    • Ask ChatGPT a geology question
    • GSM USPS mailing address
  • Display Posts
    • Display Blog Posts List
    • Display Blog Posts by Category
    • Help Viewing Blog Posts