Luck Stone and Caterpillar have reached a major milestone in their collaboration: one million tons autonomously hauled at Luck Stone's Bull Run Quarry in Chantilly, Virginia.
The achievement marks a first for Caterpillar in the aggregates industry and underscores the success of Caterpillar's autonomous haulage system (AHS) in a quarry environment. The milestone demonstrates the safety and productivity of autonomy beyond traditional large mining applications.
Since the initial deployment, the collaboration has focused on validating autonomy along with the people and processes in conditions that are typical in quarry operations but distinct from mining.
Reaching the one million tons hauled autonomously milestone confirms that autonomous haulage can deliver consistent, repeatable performance. It also signals how autonomous solutions will address skilled labour shortages, improve site safety, increase operational efficiency, and upskill quarry employees to run autonomy.
This milestone aligns with Caterpillar's enterprise strategy in several key areas:
"This milestone is a powerful demonstration of what's possible when we collaborate with our customers to deliver solutions for their critical needs. Reaching one million tons hauled autonomously at Bull Run shows that autonomy isn't just for mining—it's scalable, reliable, and ready to transform the aggregates industry. We're proud to collaborate with Luck Stone to lead that transformation," said Denise Johnson, group president, Resource Industries, Caterpillar.
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