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Best for alpine safety
An affordable backup for alpine starts, route uncertainty, and safety kits that still need a reachable signal and bearing layer instead of a forgotten filler extra.
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Ships to Columbus, OH 43215 · Free shipping over $75 · 30-day returns
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Emergency Whistle + Compass
$12.99
Ships the next business day

Colorado backcountry · general
Standard inclusion in safety kits for technical terrain.
Reviews launch with our first verified-purchase customers. Until then, every claim on this page is one we can stand behind without an aggregate.
Straight answers from route data. The same planning that builds Trip kits weighs the Emergency Whistle + Compass against your actual trail, and tells you when a different size wins.
Longs Peak: Non-negotiable — the floor under this route.
Elevation profile for Longs Peak: from 9,400 ft at the trailhead to a high point of 14,259 ft across 6.9 one-way miles. Waypoints: Trailhead, 9,400 ft at mile 0.0; Goblins Forest, 10,100 ft at mile 1.1; Chasm Junction, 11,540 ft at mile 3.3; Granite Pass, 12,080 ft at mile 4.3; Boulder Field, 12,760 ft at mile 5.5; The Keyhole, 13,150 ft at mile 6.2; Summit, 14,259 ft at mile 6.8.
For Longs Peak, the Emergency Whistle + Compass is the floor under this route.
The call rides on the route's distance (14.5 mi) and climb (5,100 ft), topping out at 14,259 ft. Time on foot and elevation gained are what put a kit like this on the must-carry line.
This call is made for the typical trip here (a party of 2, alpine day movement) rather than your exact plans. The call shifts with the people actually going.
These numbers are what summer usually does in this elevation band, not a forecast. Your date can run colder, wetter, or windier.