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- Our story
  Learn about the history and legacy of SURF
- Our Impact
  How we impact science, education & the Lead, SD community
- 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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SURF User Association Members

SURF User Association Members

MH

Mark Hanhardt

Field: Physics

Experiment: CASPAR

Institution: SDSTA

Term Expiry: 3/6/2025

View Bio

Discovery at great depths

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