[Mammals of the Cascade Mountains of Oregon and Washington]

Two of numerous pikas (and a hay pile) observed on talus slopes above the north end of Clear Lake, Indian Heaven Wilderness.......October 3, 2018.

A pika hay drying pile as seen at left amongst basalt lava boulders within the Big Lava Bed adjacent to the Pacific Crest Trail south of Road 60, Gifford Pinchot National Forest.........August 31, 2013. The photo at right shows a pika perched on talus boulders along the Indian Heaven Trail #33 near Clear Lake, Indian Heaven Wilderness.....September 8, 2023.

Pika hay pile at left on a talus slope above Lake, Indian Heaven Wilderness.........August 24, 2013. The photo at right shows a pika hay pile on talus above a long rockwork wall along the Pacific Crest Trail #2000 several hundred yards south of the junction with the Snowgrass Bypass Trail, Goat Rocks Wilderness......August 19, 2020.

Examples of old (remains of brown twigs at center) and fresh pika hay piles (with green vegetation) seen on talus slopes at Chenamus Lake, Indian Heaven Wilderness.....September 10, 2023. Note that these are at least partially covered by overhanging talus boulders to keep them dry during precipitation events.