| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | $10,200 (2027 cycle) | Last year's cycle (2026): $7,208; 2027: Unconfirmed — check official site | Catalog terms: Free attendance; check separate expenses; 2027: Unconfirmed — check official site |
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| Financial aid | Need-based financial aid: Amount: Unconfirmed — check official site. About 40% of students receive aid; average award is 70% of tuition; awards include free or reduced-price gear rental and top packages include flights. (2027 cycle) | Last year's cycle (2026): Need-based financial aid and travel grants: Amount: Unconfirmed — check official site. Free for domestic students with household income under $85,000; case-by-case awards above that and for international students.; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Expenses and aid conditions | Summer Term 2027 student account deposit: $500. Returned if unused.; Need-based financial aid: Amount: Unconfirmed — check official site. About 40% of students receive aid; average award is 70% of tuition; awards include free or reduced-price gear rental and top packages include flights.; Clarity financial aid application fee: $65. Only for aid applicants; automatically waived below a certain family income, or on request. (2027 cycle) | Last year's cycle (2026): Application: $0. Applying is free.; Need-based financial aid and travel grants: Amount: Unconfirmed — check official site. Free for domestic students with household income under $85,000; case-by-case awards above that and for international students.; 2027: Unconfirmed — check official site | Unconfirmed — check official site |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grades 10–12 (provider uses rising grades) | Grades 9–12; Grade timing: Unconfirmed — check official site | Grades 11–12 (provider uses rising grades) |
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| Additional eligibility | Ages 14–18; Requirement: Open to rising grades 10–12; Requirement: Willing to spend extended periods (10 days) outdoors in wilderness settings; no previous outdoor experience is required | Requirement: Open to grades 9–12; Requirement: Must not have already graduated from high school; Requirement: Most participants have just finished 10th or 11th grade; students who just completed 9th grade with more advanced math have attended; Requirement: International students are welcome to apply | Minimum age 16; Residency: Attend a Northern California high school (public, charter, private or homeschool); Requirement: Open to rising grades 11–12; Requirement: At least 16 years old by the start of the workshop; Requirement: Students who are 18 at the start must be U.S. citizens; Requirement: Cumulative GPA of 3.3 or higher; Requirement: Science GPA of at least 3.5; Requirement: Biology and Chemistry, or Integrated Science Series I and II, completed by the end of the current school year; Requirement: Eligible to access LLNL under Section 3112 of the 2025 National Defense Authorization Act, which generally bars citizens of China, Russia, Iran and North Korea without dual U.S. citizenship or permanent residence |
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| Session dates or duration | Starts June 27, 2027; Ends July 24, 2027; 4 weeks (2027 cycle) | Last year's cycle (2026): Starts June 28, 2026; Ends August 8, 2026; 6 weeks; 2027: Unconfirmed — check official site | Last year's cycle (2026): Starts July 13, 2026; Ends July 24, 2026; 2 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | In person | In person |
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| Housing and supervision | Residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site | Non-residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Leadville, CO | New residential campus for 2027 is not announced; Amherst, Massachusetts was the historical 2026 location | Livermore, CA |
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| Selection and application | Selection: HMI describes a typical cohort of 12-20 students; it does not publish a current applicant count or acceptance rate. Application materials: Summer Term application with two essay questions; Two teacher recommendations (at least one from a core academic teacher); 15-30 minute interview with the admissions team | Selection: Application review uses the form, letter, Interesting Test, and mathematical sponsor recommendation; no current acceptance rate or 2027 capacity is published. Application materials: Letter of recommendation from a sponsor who knows you in a mathematical context | Selection: Applications are competitive and space is limited; LLNL publishes no acceptance rate or guaranteed cohort size on the official page. Application materials: Letter of recommendation from a Biology or Chemistry teacher |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-22Source 5 · checked 2026-08-22Source 6 · checked 2026-08-22 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-10-24 | Source 1 · checked 2026-10-24 |
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