| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | April 19, 2027 (2027 cycle) |
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| Cost | $10,200 (2027 cycle) | Unconfirmed — check official site | $2,750 (2027 cycle) |
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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) | 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) | Unconfirmed — check official site | Application fee: $0; Deposit to reserve a spot: $100. Due once the application is approved; Suggested spending money: $100–$150 (2027 cycle) |
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| Stipend or pay | Unconfirmed — check official site | Catalog terms: End-of-summer participation stipend: $450; 2027: 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 10–11; Grade timing: Unconfirmed — check official site |
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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 | Residency: New York City or Newark; Requirement: Open to grades 9–12; Requirement: Identify as a young woman or gender-expansive youth; Requirement: Have not previously completed Summer Institute | Requirement: Open to grades 10–11; Requirement: Open in the summer after sophomore or junior year (students finishing grade 10 or 11); Requirement: One year of chemistry or physics |
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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 July 6, 2026; Ends August 13, 2026; 6 weeks; 2027: Unconfirmed — check official site | Starts June 7, 2027; Ends July 22, 2027 (2027 cycle) |
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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 | Non-residential. Supervision and housing details: Unconfirmed — check official site | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Leadville, CO | New York, Newark, NY, NJ | Terre Haute, IN |
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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: There are no academic or skill criteria, but admission is application- and group-interview-based; cohort size and acceptance rate are not published. Application materials: Group interview | Selection: Earlier 2026 instructions described selective application followed by first-come session placement after approval. Confirm the current 2027 review and placement process; no acceptance rate is published. Application materials: Recommendation from a counselor or 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 2026-08-21Source 3 · checked 2026-08-21Source 4 · checked 2026-08-20 | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24 |
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