| Application deadline | 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 | Last year's cycle (2026): $840–$1,500; 2027: 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 |
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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 |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Grades 10–12; Grade timing: Unconfirmed — check official site | Grades 9–12; 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 | Requirement: Be a high-school student; Requirement: Meet any course-specific prerequisite listed in the course outline; Requirement: Commit 10-12 hours weekly for most courses or 15-20 for Algebra II, Geometry and Precalculus; Requirement: Complete assignments on time and communicate regularly with the instructor; Requirement: Have no planned absence longer than five continuous days; Requirement: Confirm desired credit treatment with the home school; Exclusion: School-year GOA courses may be limited to member-school students; the summer program was open to all high-school students; Exclusion: Course registration does not guarantee that a home school will award credit; Exclusion: Primarily asynchronous does not mean self-paced; deadlines and synchronous touchpoints still apply; Exclusion: Students expecting to miss more than five continuous days are advised not to enroll |
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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 | Last year's cycle (2026): Starts June 15, 2026; Ends July 31, 2026; 7 weeks; 2027: Unconfirmed — check official site |
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| Format | In person | Online |
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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 |
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| Location | Leadville, High Mountain Institute campus and Colorado/Utah backcountry | Unconfirmed — check official site |
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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 | Selection: Summer registration is course-based rather than a published competitive-admission process. Classes are small, but current course capacities, waitlists and fill rates are not published. |
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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 2026-08-22Source 2 · checked 2026-08-22 |
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