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An intense search that includes the California National Guard is underway for two experienced hikers and their dog, who have been missing since Tuesday when they failed to return from a three-day trip in the Stanislaus National Forest.

Rescuers from at least 11 agencies are traversing treacherous terrain in search of Modesto residents Donna Hallberg, 55, and Mark Smallwood, 59.

A dog named Lulu, who is with Donna Hallberg and Mark Smallwood, is shown in a photo released by the Tuolumne County Sheriff’s Office.
A dog named Lulu, who is with Donna Hallberg and Mark Smallwood, is shown in a photo released by the Tuolumne County Sheriff’s Office.

Four scent dogs and a trail dog were tasked with tracking the couple, who left Sunday for a hike on the Crabtree Trail to several lakes near the community of Pinecrest.

“Donna and Mark are experienced hikers who have hiked the trail numerous times in the past,” the Tuolumne County Sheriff’s Office said.

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