Forgotten headlamps end hikes early. Pick your park, the season and who's coming — the list adapts, you tick things off, and the PDF keeps working offline at the trailhead.
Trailheads start near 8,000–9,500 ft and the alpine tops 12,000 ft — hydration, electrolytes and easy calories matter from day one, and so does pacing. Informational only, not medical advice.
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