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CRATER LAKE, OREGON Rangers at Crater Lake National Park are searching for a missing snowshoer who was last seen on April 28.

Investigators said the person rented snowshoes from the park concessioner and set off to hike and take photos, then vanished. Park rangers located the missing hiker s vehicle near Rim Village and questioned other hikers in the area.

A tip led rangers to an area near the crater rim where they spotted snowshoe tracks leading from the trail onto a snow cornice which had collapsed.

Extensive search efforts in that area by ground and air have not located the individual. The search has been scaled back, but is ongoing as weather and snow conditions permit, Marsha McCabe said on Tuesday.

The missing person s name and gender have not yet been released.

Investigators said they also plan to search by boat, once they can access the lakeshore.

Snow cornices pose a serious hazard. Cornices are formed when snow is blown over sharp terrain like the rim of Crater Lake. The snow forms an overhang with no solid ground beneath it for support, McCabe explained.

Snow cornices are a regular occurrence in the park this time of year and they can collapse without warning. Visitors are warned to use extreme caution and stay away from the edge of the rim at all times.

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