The Signal in the Culvert: How a Beacon Led Her Home
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The Signal in the Culvert: How a Beacon Led Her Home
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A steady 457 kHz pulse - the universal avalanche-transceiver tone - was heard echoing from a corrugated culvert at 6,200 feet while the nearest snowpack was 1,300 feet above; what was broadcasting an avalanche beacon from a dirt drainage pipe, and how did it become the key to finding a missing backcountry skier? Who was sending that signal, and why had no one thought to look there?
In this episode, we follow the search for a missing skier and the unexpected clue that changed everything. You’ll hear how routine equipment checks, a pared-down gear decision, and a lineman’s curiosity converged to answer the question left by the pulsing tone in the culvert.
Person: Crystal Fleming
Date: May 7-14, 2019
Location: Vanner Cirque / Sill Creek drainage, Hollenbeck Range / Forest Service Road Seven-Bravo / Ridgecrest, Idaho
Event: Missing backcountry skier and subsequent search
Status: Signal detected in culvert led to breakthrough after seven days
- Crystal Fleming was 56 years old in May 2019 and had skied backcountry terrain in central Idaho for 20 years.
- The tone heard in the culvert was a 457 kilohertz pulse repeating every second, the frequency of avalanche rescue transceivers.
- The pulse was detected at 6,200 feet elevation while the nearest recorded snowpack was 1,300 feet higher.
- Crystal’s truck remained at the Sill Creek trailhead on the evening of May 7 with an orange emergency bivy bag and extra layers visible on the back seat.
- Alan Weaver heard the pulsing signal while inspecting a transmission line on Forest Service Road Seven-Bravo on the morning of May 14, 2019.
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