Great Lakes Aggregates

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…

Read More

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.

Read More

Dust Monitoring at Crooks Road Plant

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

Read More

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 http://www.detroitriver.org/projects/stony-and-celeron-island-habitat-restoration.html  

Read More

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 http://www.quarrychallenge.com  

Read More

Proud to be an Industry Leader

Great Lakes Aggregates, LLC is proud to be an industry leader in high quality construction aggregates.  Our unmatched customer service and diverse product line is made possible by a group of dedicated employees working together in a safe, environmentally responsible workplace.  We provide complete results for a high demand construction marketplace.  Let our commitment help with your success!

Sylvania Minerals Quarry

Sylvania Minerals is a sandstone and limestone quarry located in the Village of South Rockwood, in north east Monroe County Michigan.

The quarry and plant began operations in 1998, and operates on a 600 acre site. The quarry mines clay, dolomitic limestone, and sandstone...

Recycled Aggregates

Concrete recycling is important because it protects natural resources and eliminates the need for disposal by using the readily available concrete as an aggregate source for new concrete or other applications.  Recycled Aggregates is proud to be part of the green solution ...

GLA in the Community

Community Concerns

Worried about blasting or noises near our operations?  We're here with answers.

Read our FAQ's

Community News

Education, videos, photos and more!

Learn about GLA in your community

Michigan Owned Business

Helpful Links