| Application deadline | Unconfirmed — check official site | Unconfirmed — check official site | February 1, 2027 (2027 cycle) |
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| Cost | Unconfirmed — check official site | $10,200 (2027 cycle) | Free attendance; check separate expenses (2027 cycle) |
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| Financial aid | Unconfirmed — check official site | 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 |
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| Expenses and aid conditions | Unconfirmed — check official site | 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) | On-campus boarding: $0. Covered by program funders.; Food: $0. Covered by program funders. (2027 cycle) |
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| Stipend or pay | Unconfirmed — check official site | Unconfirmed — check official site | Unconfirmed — check official site |
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| Eligibility | Up to grade 12; Grade timing: Unconfirmed — check official site | Grades 10–12 (provider uses rising grades) | Grades 10–11 when applying; summer rising grade is one higher |
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| Additional eligibility | Requirement: Open to grades up to 12; Requirement: Mathematical maturity of an advanced high-school student | 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: Texas high school students; Requirement: Open to students currently in grades 10–11 when applying; Requirement: Students enrolled in summer school during the program dates cannot participate (full-time attendance required) |
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| Session dates or duration | Unconfirmed — check official site | Starts June 27, 2027; Ends July 24, 2027; 4 weeks (2027 cycle) | Starts June 20, 2027; Ends June 25, 2027 (2027 cycle) |
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| Format | Online | In person | In person |
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| Housing and supervision | Non-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 | Live online classes scheduled in Pacific time | Leadville, CO | Austin, TX |
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| Selection and application | Selection: Applicants must persuade Euler Circle that they are prepared and a good instructional fit; Euler Circle says ordinary seat scarcity usually is not the main constraint and does not publish acceptance statistics. | 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: McCombs describes desired qualities but publishes no current applicant count, cohort size, acceptance rate, fixed GPA cutoff, identity quota, geographic quota, scoring rubric, interview process, or waitlist policy. Historical cohort figures must not be treated as a future guarantee. Application materials: Essay(s); One letter of recommendation |
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| Official sources | Source 1 · checked 2026-10-24Source 2 · checked 2026-10-24Source 3 · checked 2026-10-24Source 4 · checked 2026-08-20 | 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 2026-08-20Source 3 · checked 2026-08-20 |
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