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Keywords:AZRA, Arizona, Arizona Raft Adventures, Bufo woodhousii woodhousii, Canon Cameras, Colorado River, Courtship Behavior, Endagered, Endangered River, Grand Canyon, Grand Canyon Naitonal Park, Grand Canyon National Park, Grand Canyon Raqfting, Marble Canyon, Nankoweap Canyon, Photo Expoedition, Photography Expedition, Ralph Lee Hopkins, River Mile 53, Rocky Mountain Toad or Western Woodhouse's toad (Bufo woodhousii, adventure, white water rafting
