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Company Name
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Plant Name
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Subsidiary
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City
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State/Province
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| Martin Marietta | Martin Marietta - Hwy 34 Plant | Rocky Mountain Division | Loveland | Colorado | | Martin Marietta | Martin Marietta - Hwy 85 Plant | Rocky Mountain Division | Colorado Springs | Colorado | | Martin Marietta | Martin Marietta - Quivas Plant | Rocky Mountain Division | Denver | Colorado | | CRH | Four Corners Materials-Animas Glacier | Four Corners Materials | Durango | Colorado | | Martin Marietta | Martin Marietta - Rock Creek Plant | Rocky Mountain Division | Lafayette | Colorado | | LaFarge Holcim | Riverview Plant | Aggregate Industries WCR | Littleton | Colorado | | Martin Marietta | Martin Marietta - Del Camino Plant | Rocky Mountain Division | Longmont | Colorado | | Martin Marietta | Martin Marietta - Brighton Plant | Rocky Mountain Division | Brighton | Colorado | | CRH | Telluride | United Companies | Telluride | Colorado | | CRH | Woody Creek | United Companies | Woody Creek | Colorado | | LaFarge Holcim | Longmont Plant | Aggregate Industries WCR | Longmont | Colorado | | CRH | Steamboat | United Companies | Steamboat Springs | Colorado | | CRH | Rifle | United Companies | Rifle | Colorado | | CRH | Montrose | United Companies | Montrose | Colorado | | CRH | Minturn | United Companies | Minturn | Colorado | | CRH | Gypsum | United Companies | Gypsum | Colorado | | CRH | Gunnison | United Companies | Gunnison | Colorado | | CRH | River Rd | United Companies | Grand Junction | Colorado | | CRH | Delta | United Companies | Delta | Colorado | | CRH | Crested Butte | United Companies | Crested Butte | Colorado | | CRH | Powers | United Companies | Carbondale | Colorado | | LaFarge Holcim | WCR Sand Creek (RM) | Aggregate Industries WCR | Sand Creek | Colorado | | LaFarge Holcim | Timnath Plant | Aggregate Industries WCR | Timnath | Colorado | | CalPortland Company | Orange Ready Mix Plant | | Modjeska | California | | CalPortland Company | San Juan Ready Mix Plant | | San Juan Capistrano | California |
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