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South Rockwood, MI 48179
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News Archive

Celeron Island Project Progress

E.C. Korneffel making great progress on the shoals surrounding Celeron Island near Grosse Ile, MI. Limestone rip-rap from Sylvania Minerals Quarry in South Rockwood, MI is used in constructing the shoals.

2018 Quarry Challenge – Sylvania Minerals Quarry

Written by Kerry Guiliano, President of the Friends of the South Rockwood Library   The two Caterpillar 775F & G 70-ton machines that held the finish line glistened in the sunshine early Sunday morning as Quarry Challenge runners geared up for their second annual run into the heart of Sylvania Minerals quarry. As 256 runners…

Taking the Challenge of a Quarry 5K 2.0

The second annual 5K Walk/Run Quarry Challenge and fossil walk was held at the Sylvania Minerals quarry in South Rockwood Sunday. Click here to read the full story from the Monroe News.

Dust Monitoring at Crooks Road Plant

The Safety Department monitoring dust concentrations throughout the concrete recycling process at the Crooks Road plant.

E.C. Korneffel completes two-year Stony Island Restoration project, begins work on Celeron Island

E.C. Korneffel completed the Stony Island Restoration Project near Grosse Ile on the Detroit River and began work near Celeron Island located just south of Grosse Ile Municipal Airport this summer. To learn more about the project, please visit  

Quarry Challenge Date Set for 2018!

This was the 2017 Quarry Challenge 5K Walk-Run held at the Sylvania Minerals Quarry. This fundraiser supports the Friends of the South Rockwood Library for community education and events. Please join us for the 2018 Quarry Challenge Event on September 23, 2018! For more information please visit  

Leaders discuss Michigan’s ‘buried treasures’ as key to high-tech future

Contact: Ed Golder (Michigan Department of Natural Resources), 517-284-5815 Agency: Natural Resources Feb. 13, 2018 FIRST-EVER CONFERENCE SPOTLIGHTS NATURAL RESOURCE-BASED INDUSTRIES’ ROLE IN STATE’S ECONOMY, COMMUNITIES AND JOB GROWTH State policy leaders and industry and academic experts today dug deep into the importance and potential of Michigan’s abundant underground resources in building Michigan’s economic future. Hundreds of companies…

Construction of New Settling Pond Nearly Finished

A new settling pond is currently being constructed at Sylvania Minerals to store fines as part of the mineral washing process. Dan’s Excavating is the contractor on the project and is ahead of schedule.

Stony Island – E.C. Korneffel Project Nearly Complete!

The E.C. Korneffel – Stony Island Restoration Project near Grosse Ile, MI is nearly complete. To learn more about this project, click here.

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