Developed after high quality limestone
deposits were uncovered in an existing quarry, today Linwood ranks
as one of the largest underground limestone mines in the country.
Two distinct ledges of operation
yield high-calcium limestone. Both ledges meet Iowa's highest
level of classification for concrete aggregates. In addition,
the high purity of Linwood limestone makes it ideal for chemical
production.
The Linwood mine operates twelve
months a year and mines roughly 32 acres annually. In addition
to limestone production, the mine also serves as a site for additional
activities. A subterranean shop and office area allow for onsite
equipment upkeep and careful monitoring of mining operations.
Safety and corporate training also take place below, as well as
fabrication and water storage
After stone is extracted from
the mine, it is transported to a primary crusher. Following the
initial crushing process, the material is then sized and screened
in accordance with customer specifications. Finally, Linwood products
are either stockpiled or transported to the chemical plants for
further processing.
