Alcona Community High School students learn about soils from Jack Guy.



The Northeast Michigan Great Lakes Stewardship Initiative could not be as successful as it is without the dedicated support from all of our partners, including schools, government agencies, non profits, and businesses. They are the people that make these projects happen! Click the link below to see a list of all the partners involved in NEMI GLSI.


Explore Your Watershed!


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Specification Stone Products

Specification Stone Products
1009 Long Lake Avenue
Alpena, MI 49707

Phone: (989) 354-3502
Fax: (989) 358-9879

Specification Stone Products’ LedgeStone is the premier stone products for the most unique landscape and architectural designs

Specification Stone Products operates two Michigan quarries – the Onaway quarry and the Alpena quarry. The Onaway quarry was started in the 1940s. The stone from this quarry was highly sought after due to its excellent design properties. In fact, the local post office was made with stone from this quarry. The Glawe family had been involved in the forestry and lumber business and had previously worked with Wallace Stone in sorting Rip Rap. This Rip Rap has been used for all the marinas around the area. The family purchased the Onaway quarry and, later, the Alpena operations.The Alpena quarry was purchased in 1987 from Straights Aggregates, which was owned by the Detroit and Mackinaw Railroad. They started the quarry in 1980. In 2009, both the Onaway and Alpena operations were purchased by the Levy Group of Companies.

The stone from these quarries has been used for many interesting and beautiful applications including:

Our Lady of the Wood Shrine in Mio, Michigan – Indian River, Michigan

A number of Earl A. Young Houses in Charlevoix, Michigan

Stone Indian Head located at the Michigan Magazine Museum in Fairview, Michigan

Links to projects with which this organization is a Community Partner.
Contact GLSI Northeast Michigan

Northeast Michigan GLSI network programs and materials are open to all without regard to race, color, national or ethnic origin, gender, gender identity, religion, age, height, weight, disability, political beliefs, sexual orientation, marital status, family status, or veteran status.

2020 NEMIGLSI Leadership Team Bar

AMA-Iosco Math Science Center Americorps U.S. Fish & Wildlife Service Great Lakes Fishery Trust Great Lakes Stewardship Initiative Community Foundation Northeast Michigan Huron Pines Cheboygan-Otsego-Presque Isle ESD Alpena-Montmorency-Alcona ESD Michigan Department of Natural Resources Northeast Michigan Council of Governments Thunder Bay National Marine Sanctuary 4-H MSU Extension Michigan Sea Grant NOAA