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    • Our story

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    • Our Impact

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    • Visitor Information

      Visiting the Facility

    • Who We Are

      Mission, Boards and Committees

    • Sanford Lab Homestake Visitor Center

      About the Visitor Center

    • Plan Your Visit

      Our visitor center in Lead, SD is free and open 7 days a week 9:00–5:00.

    • Bus and Group Tours

      Information for buses and group tours

    • Meeting and Event Rental

      Meeting and Event Space Rental

    • Areas of Research

      Get a glimpse into the cutting-edge research

    • Experiments

      Learn about ongoing work and discoveries at SURF

    • SURF User Association

      For individuals with a professional interest in the scientific program at SURF.

    • Research Proposals

      How to propose an experiment underground at SURF.

    • Education and Outreach

      Connecting students, educators, and the wider community

    • K-12 Educator Resources

      Materials that bring SURF science into your classroom

    • Professional Development

      Building capacity and professional networks among educators

    • Davis-Bahcall Scholars

      For students who want to explore the world of modern STEM research

    • Internships

      Paid, hands-on, mentored student experiences

    • The SURF Foundation

      The SURF Foundation provides fund for SURF's E&O programs

    • SURF Foundation Team

      SURF Foundation staff and board members

    • Make a Donation

      Join our effort to advance world class science and inspire learning across generations.

    • The Institute for Underground Science at SURF

      The Institute will unite today’s research and tomorrow’s discoveries

    • Čhaŋgléška Wakȟáŋ

      Learn about the ethnobotanical garden

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  2. Exhibit 4 - Oro Hondo Transformers.pdf

Exhibit 4 - Oro Hondo Transformers.pdf

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Discovery at great depths

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Lead, SD 57754
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