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Alaska, 1979
Photos and reminiscences by your About Geology Guide
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Southeastern end of the Fairweather Range. The Fairweather fault, a long strike-slip fault like the San Andreas of California, comes ashore near the left edge of this photo, where a distinct notch appears behind La Perouse Glacier.

From here the Disco turned east, threading its way into the intricate waters of the Alaska Panhandle and leaving the Gulf of Alaska behind. The next day, August 12, I learned it had been a tricky bit of sailing:

"Last night we came through Cross Sound, possibly the most dangerous entrance in North America. The helmsman found the ship, at one point, had moved a mile in three minutes! Strong tidal currents rip back and forth across the strait. I knew nothing of this until we were already through. I was watching the aurora borealis for the first time. It was a weak display, consisting of a white glow that formed a few dim lobes, and one or two vertical shafts that made a curtain effect. They moved slowly and each vanished after a couple minutes."

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