Great Lakes Aggregates - Sylvania Minerals, LLC

Great Lakes Aggregates - Sylvania Minerals, LLC Sylvania Minerals is a sandstone and limestone quarry located in the Village of South Rockwood, in Monroe County, Michigan

Sylvania Minerals is a sandstone and limestone quarry located in the Village of South Rockwood, in northeast Monroe County Michigan. We offer a diverse product line of premium quality construction aggregates. All of Great Lakes Aggregates facilities are pre-qualified MIchigan Department of Transportation Aggregate Sources and are open to the general public.

All our locations will be closed for the holiday weekend so we can enjoy this time with our families. Please be safe and...
09/02/2026

All our locations will be closed for the holiday weekend so we can enjoy this time with our families. Please be safe and have a wonderful weekend!

08/21/2026
08/11/2026

We are so proud to invest into our community! Ensuring the children in our area have vibrant, safe and beautiful diamonds to be active outdoors, play, grow and make memories is something we all can treasure and appreciate.

We are proud to be a sponsor of this long running outdoor festival supporting our community and conservation efforts.
08/07/2026

We are proud to be a sponsor of this long running outdoor festival supporting our community and conservation efforts.

The Pointe Mouillee Waterfowl Festival isn’t just another event, it’s a tradition that has brought Michigan’s outdoor community together for nearly eight decades. Now, we’re inviting local businesses and organizations to be a part of that tradition.

As a 501(c)(3) nonprofit, every sponsorship directly supports conservation efforts, youth outdoor programs, and helps keep one of North America’s oldest running outdoor festivals thriving for future generations.

By becoming a sponsor, you’ll:
🦌 Put your business in front of thousands of outdoor enthusiasts
🦆 Show your support for conservation and Michigan’s hunting and fishing heritage
🤝 Gain exposure while making a lasting impact in the community

We have sponsorship opportunities for businesses of all sizes, and we’re also looking for raffle prizes, auction items, and other in-kind donations.

If your business believes in supporting the outdoors, we’d love to partner with you.

Visit ptemouilleewaterfowlfestival.org or send us a message to learn more about becoming a sponsor. Help us keep this incredible tradition alive!

In place of the Quarry Challenge this year, we are proud to support the Friends of the South Rockwood Library Reading Fe...
07/28/2026

In place of the Quarry Challenge this year, we are proud to support the Friends of the South Rockwood Library Reading Festival. This free community event is packed with fun activities for families, including face painting, a bounce house, live reptiles, story time, a dance party, and much more. We hope you'll join us on the last Sunday of September for a day of learning and fun.

Have a fun and safe holiday weekend as we celebrate America's 250th!
06/29/2026

Have a fun and safe holiday weekend as we celebrate America's 250th!

Our Crooks Road location is now open 6 days a week!
06/09/2026

Our Crooks Road location is now open 6 days a week!

Today we had the honor of hosting Iafrates’s 2026 interns. They went on a tour of the plant, yard, quarry and even exper...
06/05/2026

Today we had the honor of hosting Iafrates’s 2026 interns. They went on a tour of the plant, yard, quarry and even experienced a blast. Thank you for choosing us for a visit and we wish you all good luck in the future!

Today was the end of an era for our GLA Family. After decades of work in the aggregate industry we bid our Best Wishes a...
05/29/2026

Today was the end of an era for our GLA Family. After decades of work in the aggregate industry we bid our Best Wishes and Happy Retirement to Mike Parson's. He will be greatly missed. The torch has been passed to Ryan Lumpford, who has been with us for the past year. Any sales needs can be directed towards Ryan at 734-558-7757 or [email protected]

Address

5699 Ready Road
South Rockwood, MI
48179

Opening Hours

Monday 6am - 5pm
Tuesday 6am - 5pm
Wednesday 6am - 5pm
Thursday 6am - 5pm
Friday 6am - 5pm
Saturday 6am - 2pm

Telephone

+17347837400

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