| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Cost | Last year's cycle (2026): $9,900; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Financial aid | Last year's cycle (2026): Need-based financial aid: Amount: Unconfirmed — check official site. About 40% received aid in the published cycle; average award was 70% of tuition, and aid included discounted or free gear rental, with top packages potentially covering flights.; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Last year's cycle (2026): U.S. family-income guarantee: Amount: Unconfirmed — check official site. U.S. students from families under $80,000 attended free in 2026.; Full/partial need-based aid and international aid: Amount: Unconfirmed — check official site. Aid available where cost is a barrier; international aid considered case by case.; 2027: Unconfirmed — check official site |
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| Expenses and aid conditions | Last year's cycle (2026): 2026 student-account deposit: $500. Returned to the family if unused; separate enrollment deposit details were not quantified on the official pages.; Travel to and from Colorado: Amount: Unconfirmed — check official site. Flights were not included in tuition, although the largest need-based aid packages could cover them.; Need-based financial aid: Amount: Unconfirmed — check official site. About 40% received aid in the published cycle; average award was 70% of tuition, and aid included discounted or free gear rental, with top packages potentially covering flights.; Clarity financial-aid application fee: $65. Applies to the aid application; automatic or inquiry-based fee waivers are available for eligible families.; 2027: Unconfirmed — check official site | Unconfirmed — check official site | Last year's cycle (2026): U.S. family-income guarantee: Amount: Unconfirmed — check official site. U.S. students from families under $80,000 attended free in 2026.; Full/partial need-based aid and international aid: Amount: Unconfirmed — check official site. Aid available where cost is a barrier; international aid considered case by case.; 2027: 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; Grade timing: Unconfirmed — check official site | Grades 7–11 when applying; summer rising grade is one higher | Grades 10–12; Grade timing: Unconfirmed — check official site |
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| Additional eligibility | Ages 14–18; Requirement: Be a rising 10th, 11th, or 12th grader and age 14-18 for the applicable cycle; Requirement: Be prepared for a residential program at 10,000 feet and extended backpacking expeditions; Requirement: Complete the required application, recommendations, transcript, and interview; Requirement: If accepted, complete health, physical, risk, release, enrollment, and payment requirements; Exclusion: Prior outdoor experience is not required; Exclusion: The official pages do not state a citizenship or Colorado-residency restriction; Exclusion: Program mental-health services are limited, and backcountry groups may lack timely outside support; families must evaluate fit with HMI | Residency: Participants from around the world are welcomed; Requirement: Students currently in grades 7–11 who will enter grades 8–12 in 2027; Requirement: No GPA requirement stated by the programme | Ages 14–18; Residency: Students from the United States and abroad are eligible; international financial aid is case by case; Requirement: Be age 14-18 by the applicable program cutoff; Requirement: Have completed grade 9 or equivalent before the session; Requirement: Not be enrolled full time in a college or university by the program's first day; Requirement: Be available for the entire six-week residential session and comply with dormitory, curfew, visiting, safeguarding, and conduct rules; Requirement: Independently attempt the official application problem set and explain experiments, conjectures, proofs, and partial progress; Requirement: Submit the required recommendation, transcript, form, short answers, and any financial-aid documents; Requirement: Retain scratch work and be prepared to explain reasoning if originality is verified; Exclusion: Applicants outside the age/education window or already full-time college students at program start; Exclusion: Collaborative, copied, AI-assisted, internet-generated, uncited, or inadequately explained problem-set work; Exclusion: Applicants unable to reside for the full six weeks or follow residential/safety expectations; Exclusion: Assuming all eight problems must be solved or that prior advanced courses/research are required; Exclusion: Assuming selection guarantees aid, publication, conference presentation, college credit, recommendation, admission advantage, internship, or job |
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| Session dates or duration | Last year's cycle (2026): Starts June 28, 2026; Ends July 25, 2026; 4 weeks; 2027: Unconfirmed — check official site | Starts July 11, 2027; Ends July 24, 2027; 2 weeks (2027 cycle) | Catalog terms: 6 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 | Residential. Supervision and housing details: Unconfirmed — check official site |
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| Location | Leadville, High Mountain Institute campus and Colorado/Utah backcountry | Spartanburg, South Carolina | Boston, Boston University campus, Massachusetts |
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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: Two approximately 250-word essays; Two teacher recommendations, including at least one from a core academic teacher, under the current central admissions page; Required 15-30 minute admissions interview | Unconfirmed — check official site | Selection: About 80 high-school students are selected through demonstrated mathematical thinking in the problem set, academic context, recommendation, transcript, and short answers. PROMYS does not publish the current applicant count or acceptance rate. Application materials: One recommendation |
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| Official sources | Source 1 · checked 2026-08-22Source 2 · checked 2026-08-22Source 3 · checked 2026-08-22Source 4 · checked 2026-08-22Source 5 · checked 2026-08-22Source 6 · checked 2026-08-22 | Source 1 · checked 2026-10-10Source 2 · checked 2026-10-10Source 3 · checked 2026-10-10Source 4 · checked 2026-08-21 | Source 1 · checked 2026-08-20Source 2 · checked 2026-08-20Source 3 · checked 2026-08-20Source 4 · checked 2026-08-20Source 5 · checked 2026-08-20Source 6 · checked 2026-08-20 |
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