1981 - 1982
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Format: 2019/10/23

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Object custodian

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Mount St. Helens.
The crater, seen from the pyroclastic flow.
Spirit Lake from the air.
The crater, seen from the pyroclastic flow, with hardened lava in foreground.
Machinery removing logs from immense jam at east end of Swift Reservoir.
Ruins of Weyerhaeuser logging camp on North Fork of Toutle River.
The crater, seen from the pyroclastic flow, with airborne helicopter in foreground.
South Fork Toutle River showing dam and Washington Game Department fish trap.
Bill Eppridge, Sports Illustrated photographer, at Castle Lake.
Confluence of Green River (left) and North Fork Toutle River, showing mudflow.
Blown-down timber on eastern flank of mountain.
Coldwater Lake, right, formed by the eruption when debris blocked Coldwater Creek. At left is a mudflow following the course of the creek.
Timber blown down atop ridge, looking toward the mountain.
Pyroclastic flow below lip of crater, looking back toward Spirit Lake.
Damaged area on eastern approach to mountain.
The lava dome in the crater, taken from a distance with telephoto lens.
Spirit Lake.
Inside the crater looking out.
Grizzly Creek, tributary of North Fork Toutle River, showing mudflow and tree damage.
Unusual gas-bubble patterns from decaying organic matter at Castle Lake.