We spent today in a transition zone between the wet western side of the Cascade Mountains and the rain shadow of the eastern side of the Cascades. As we traveled towards Rowena Crest overlook, the vegetation dramatically changed from Sitka spruce and Western red cedar to Garry oak and big-leaf maple. The geology became more apparent as the vegetation became sparser. As we continue our travels eastward, big-leaf sagebrush will become the dominant plant of the landscape.
4/25/2024
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National Geographic Sea Bird
Crow Butte
After transiting McNary Lock and Dam, National Geographic Sea Bird dropped anchor at Crow Butte in the early morning of Thursday, April 25th. After a hearty breakfast, we were delivered by Zodiac to the south side locations for an aerobic walk to the top of Crow Butte, supplemented with a medium elevation nature hike. A more casual history-oriented walk began on the west side of the Island and ended where we were able to get some great photos of National Geographic Sea Bird at anchor. The aroma of the sagebrush in the shrub-steppe environment filled the air, and the gentle but steady winds preceded a light rain in the otherwise arid environment. Returning hikers were greeted by the hotel staff and hot chocolate at the landing site and also enjoyed the playground equipment. Crow Butte is a tear drop shaped island surrounding a core of basalt, and the sandy terrain is composed of debris deposited during the Ice Age Flood events of 12,000-18,000 years ago. The afternoon was spent cruising the Columbia River on our way to dock at Hood River, Oregon.