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The Aggregate Source is a large granite quarry located on the west side of Canon City, Colorado.  The family owned and operated quarry was purchased in 1993 by Danny Tezak of Tezak Heavy Equipment Co., Inc.  The primary purpose was to insure the quality and quantity of riprap products needed on construction products being performed by Tezak Heavy Equipment Co., Inc.  It wasn’t long before the word got out about the quality of the material being produced.  The rest is history.

Tezak Heavy Equipment Co., Inc. purchased Table Mountain Quarry from Castle Concrete in 2008. This quarry is located north of Penrose, CO, on SH 115 and was purchased so that we could better serve the Castle Rock and Denver Markets.

Rock production is done by means of drilling and blasting from the large granite face.  From this raw state it is sorted by mechanical means which starts with a unique Rock Master™ Riprap plant that separates rock from the pit run material greater than six inches.  The remaining material is then sent to a cone crusher and screen decks to produce the desired sizes and gradations required for projects throughout Colorado.  The result is a 100% fractured red and gray granite aggregate that is used in various types of construction projects including stream bank protection, landscaping, asphalt and concrete products.

We are a commercial quarry and sell to commercial companies. If you are a homeowner, we will be happy to assist you on any project that requires 100 tons or more.  If you project is less than 100 tons, please visit our Landscape site at We pride ourselves on our customer service and a great product.  Feel free to browse through our products.  Don’t forget we deliver, call us today for prices for your area.


Our Mission

We are committed to being  the premier aggregate source for Colorado. Our customers can trust that we are dedicated to providing innovative, efficient, and exceptional products, services, and workmanship. Our employees are hard working; highly motivated individuals that continually strive to advance their skills. Through teamwork and leadership, we will prove to be a company that is second-to-none.

Our People

It's our people that make the difference! Both quarries are under the direction of Danny Tezak and are managed by Rick Bohnenkamp. They employ two crusher operators, three loader operators, one quarry laborer, and one light maintenance mechanic. 

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Our Products

ALL OF OUR ROCK IS 100% FRACTURED RED GRANITE!  It is an igneous rock that consists mainly of quartz, mica, and feldspar.  It is the alkali feldspar that gives our rock that distinctive pink color.  Granite is hard and tough and has widespread use as a construction stone.  In fact, our granite ends up in construction sites all over the State of Colorado! 

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Latest News

Contact information

The Aggregate Source
205 Tunnel Drive
Canon City, CO 81212
719-275-8196 fax
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Canon City Quarry (Headquarters)

Table Mountain Quarry