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Earlier Event: November 7San Marcos High School Field Trip: Follow the Rock Pt. 2
Project Cornerstone's mission is to educate the public about the importance of local construction aggregates (i.e., sand, gravel and crushed stone) through hands-on learning in Science, Technology, Engineering and Mathematics (STEM). Construction aggregates are used to build roads, houses, schools and all other infrastructure; they are the cornerstone of our communities.
Project Cornerstone | 3511 Camino Del Rio S, #403, San Diego, CA, 92108, United States