Crushed Stone Inventory at Menzer Quarry




Rhyolite Built Bridge


Schmidt’s quarries and pits mine a wide variety of minerals that are processed into final end-use products or delivered in virgin form to the construction industry and other specialty markets (ie. golf course sand and masonry products). Typical Schmidt Aggregate products supplied and their end uses are:

Crushed Stone or Rock

Schmidt Aggregate’s Mencenberg and Menzer Quarry’s produce crushed stone from natural deposits of rhyolite and granite. Production of these products requires blasting and excavating the broken stone from these mines, followed by progressive stages of crushing, screening and blending.

The company’s aggregate products range in size from riprap, where each stone may weigh several tons, to manufactured sand for use in concrete and asphalt applications.

Schmidt produces various size rocks and gradations of crushed stone for specifications established by governmental agencies and our commercial customers. Crushed stone is used in highway construction, railroads, airports, water and sewage systems, and in residential and industrial building.

Rhyolite from the Mencenberg Quarry and Split Stone Quarry is a rare and beautiful stone, which was formed by volcanic activity. The word Rhyolite comes from the Greek word for stream (rhyax + the suffix lite). Rhyolite was named streaming rock because of its beautiful flow bands created by thin layers of ash fall tuff that
originated from volcanic eruptions 35 million years ago in central Colorado and deposited in the Castle Rock area.

This decorative stone is used in landscaping, retaining walls, and as decorative face veneer for buildings and bridges.

To learn more about rhyolite and its decorative end uses click here Rhyolite End-Uses

Sand and Gravel

Schmidt Aggregate’s Fountain, Miller, Mclain and Coal Creek pits harvest sand and gravel from both glacial and alluvial deposits. Surface mined natural sand and gravel resources produce specification aggregate blends for asphalt, concrete, road base, and utility operations, as well as masonry and golf course sands.

The company’s diligent quality control and flexible processing plants ensure that a wide variety of products are available to mt the requirements of federal, state and local agencies, as well as commercial and residential contractors.

Specialty sands are also produced for masonry and golf course applications. The company’s golf course sands are very fine grained and white, making them an ideal product for sand traps and bunkers.

Recycled Products

Asphalt is the most widely recycled product in the world. Schmidt has been an environmentally responsible leader in recycling asphalt, also known as RAP. Recycling asphalt helps preserve our valuable natural resources, as asphalt contains significant amounts of petroleum products.

RAP is used by the Asphalt Division to supplement the manufacturing of new asphalt, and can also be used as a crushed aggregate for road shoulders and driveways.

Recycled asphalt is available to outside contractors from Schmidt’s Colorado Springs and Castle Rock Distribution Depots.