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    1. Home
    2. /Gov Explore
    3. /NAICS Codes
    4. /21231

    NAICS Demand Lane

    Stone Mining and Quarrying, Contract Opportunities

    406 total opportunities (406 active) tied to NAICS 21231 across federal, state, local, and forecast sources.
    NAICS 21231Federal + SLED406 total
    View NAICS definition →
    Total Opportunities
    406
    Across all indexed sources
    Active Estimate
    406
    Approximate active count
    Source Count
    3
    Federal, SLED, and forecast lanes

    Latest federal solicitations for NAICS 21231.

    DEPARTMENT OF AGRICULTURE

    DESCHUTES NATIONAL FOREST ROCK CRUSHING - BLACK BUTTE PIT

    Active

    AI Summary

    This opportunity is a Request for Quotation (RFQ) for rock crushing services at the Black Butte Pit in Sisters, Oregon. The project includes clearing, pit development, aggregate crushing, stockpiling, and testing. It is set aside for small businesses, with a quote due date of September 15, 2026. Interested parties shou…

    OR

    Posted Sep 11, 2026Due Sep 15, 2026Combined Synopsis/SolicitationNAICS 212319Total Small Business Set-Aside (FAR 19.5)Sol: 1240BE26Q0104
    View details→

    DEPARTMENT OF AGRICULTURE

    ROCK CRUSHING SERVICE FOR THE WALLOWA WHITMAN NATIONAL FOREST

    Active

    AI Summary

    The USDA Forest Service is seeking quotations for rock crushing services at the Wallowa Whitman National Forest. This RFQ is set aside for small businesses and includes options for additional services. The performance period is from October 1, 2026, to September 30, 2027. Interested parties should submit their quotatio…

    OR

    Posted Sep 10, 2026Due Sep 18, 2026Combined Synopsis/SolicitationNAICS 212319Total Small Business Set-Aside (FAR 19.5)Sol: 1240BE26Q0107
    View details→

    DEPARTMENT OF THE INTERIOR

    56--LOWER YELLOWSTONE RIVER BYPASS CANAL RIPRAP

    Archived

    AI Summary

    The Department of the Interior, Bureau of Reclamation, is seeking proposals for the Lower Yellowstone River Bypass Canal Riprap project. This opportunity involves both construction services and materials, specifically focusing on riprap installation. Proposals are due by September 14, 2026.

    MT

    Posted Sep 10, 2026Due Sep 14, 2026Combined Synopsis/SolicitationNAICS 212319Total Small Business Set-Aside (FAR 19.5)Sol: 140R6026Q0144
    View details→

    DEPARTMENT OF THE INTERIOR

    56--FY 26 ORV RAMP SHELL ORDER

    Active

    AI Summary

    The opportunity involves a combined synopsis/solicitation for the FY 26 ORV Ramp Shell Order at Cape Hatteras National Seashore. This amendment corrects PSC information in the solicitation. Bidders should note the set-aside for SBA and prepare accordingly.

    FL

    Posted Sep 4, 2026Due Sep 15, 2026Combined Synopsis/SolicitationNAICS 212311Total Small Business Set-Aside (FAR 19.5)Sol: 140P5326Q0033
    View details→

    DEPARTMENT OF AGRICULTURE

    THIS OPPORTUNITY IS ONLY AVAILABLE TO THE REGION 3 FOREST ENGINEERING & ROADS MAINTENANCE BLANKET PURCHASE AGREEMENT (FERM BPA) CONTRACTORS

    Archived

    AI Summary

    This opportunity is exclusively for Region 3 Forest Engineering & Roads Maintenance BPA contractors in Arizona. It involves supplying approximately 2950 tons of crushed aggregate stockpile for the Apache-Sitgreaves National Forest, with designated pit locations not exceeding 35 miles from the forest boundary.

    AZ

    Posted Sep 3, 2026Due Sep 11, 2026SolicitationNAICS 212312Total Small Business Set-Aside (FAR 19.5)Sol: 1240LP26Q0168
    View details→

    DEPT OF DEFENSE

    Providence Bend Rock Purchase

    Archived

    AI Summary

    The U.S. Army Corps of Engineers requires the purchase of four types of rock for the Missouri River Project. The total quantities include 400 tons of 6” minus rock, 10,100 tons of Type 1 rock, 250 tons of 3” clean rock, and 250 tons of 1” road rock. Interested bidders should refer to the attached combined synopsis/soli…

    MO

    Posted Sep 2, 2026Due Sep 10, 2026Combined Synopsis/SolicitationNAICS 212319Small Business Set Aside - TotalSol: W912DQ26QA079
    View details→

    DEPT OF DEFENSE

    AMENDMENT 01 - BULK PURCHASE RIPRAP MATERIALS

    Archived

    AI Summary

    This opportunity involves the supply and delivery of angular riprap stone for the 21st Civil Engineering Squadron. The amendment includes updates on questions, certified scale requirements, and an extended solicitation due date. Bidders should review the highlighted changes in the Combined Synopsis/Solicitation documen…

    CO

    Posted Aug 27, 2026Due Sep 1, 2026Combined Synopsis/SolicitationNAICS 212319Sol: FA251726QA032
    View details→

    DEPARTMENT OF THE INTERIOR

    56--MRG RIPRAP STOCKPILE

    Archived

    AI Summary

    The Department of the Interior, Bureau of Reclamation, is seeking proposals for the MRG Riprap Stockpile project. This opportunity involves both construction and environmental services, specifically related to riprap stockpiling. Interested bidders should prepare to submit their proposals in response to this combined s…

    UT

    Posted Aug 25, 2026Due Sep 1, 2026Combined Synopsis/SolicitationNAICS 212319Total Small Business Set-Aside (FAR 19.5)Sol: 140R4026Q0098
    View details→

    DEPT OF DEFENSE

    Class IV base course aggregate

    Archived

    AI Summary

    The Department of Defense, specifically the Air Force, is soliciting for Class IV base course aggregate with a requirement for brand name or equal products and door-to-door delivery. Interested parties should submit inquiries by August 24, 2026, and monitor for any amendments to the solicitation.

    AP

    Posted Aug 25, 2026Due Aug 31, 2026SolicitationNAICS 212319Sol: FA527026QA048
    View details→

    DEPT OF DEFENSE

    WHATCOM BYLSMA MATERIALS

    Archived

    AI Summary

    The Department of Defense is soliciting bids for the supply and delivery of materials for levee reconstruction near Ferndale, WA, in response to the December 2025 flood event. Bidders must provide materials using a Solo Dump Truck or Truck and Transfer as specified in the Scope of Work.

    WA

    Posted Aug 20, 2026Due Aug 27, 2026SolicitationNAICS 212319Total Small Business Set-Aside (FAR 19.5)Sol: W912DW26QA077
    View details→

    Source mix

    How this NAICS code is represented across indexed contract sources.

    federal
    276
    sled
    112
    forecast
    18

    Related NAICS Codes

    • 21, Mining, Quarrying, and Oil and Gas Extraction→
    • 211, Oil and Gas Extraction→
    • 2111, Oil and Gas Extraction→
    • 21112, Crude Petroleum Extraction →
    • 211120, Crude Petroleum Extraction →
    • 21113, Natural Gas Extraction →
    • 211130, Natural Gas Extraction →
    • 212, Mining (except Oil and Gas)→
    • 2121, Coal Mining→
    • 21211, Coal Mining→

    Explore

    • 21231 Definition→
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    About NAICS 21231

    Stone Mining and Quarrying involves the extraction of dimension stone, crushed and broken stone, riprap, sand, gravel, and clay from the earth. This industry includes operations that quarry stone for use in construction, landscaping, and other applications.

    Read the full NAICS definition →