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〕 }} Strawberry Lake is a natural high-elevation body of water in the Strawberry Mountain Wilderness in the U.S. state of Oregon. Located about south of Prairie City in Grant County, the shallow lake covers about surrounded by forest. Recreational activities in the lake basin include hiking, backpacking, skiing, and fishing. ==Geology and geography== Stratovolcanoes erupting about 14.7 million years ago in the Miocene covered about of what later became Grant County with andesite lavas and mudflows.〔Bishop, pp. 152–53〕 The Strawberry Mountains are eroded remnants of the mountains created by those volcanoes and by intrusions of igneous rock.〔 Strawberry Lake is the largest of the small glacial lakes found in the Strawberry Mountain Wilderness. The surface of the lake is more than above sea level. Occupying part of a valley carved by ice in the Pleistocene, the lake formed behind a landslide dam across Strawberry Creek. Water from the lake does not flow over the dam except in high water but seeps through the landslide to re-form the creek several hundred yards (meters) downstream.〔 Strawberry Lake has an average depth of and a maximum depth of . The length of its shoreline is about . Despite water-quality problems stemming from recreational activity in the lake's drainage basin, the water remains transparent enough that the lake bottom is visible from the surface even at the lake's deepest point.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Strawberry Lake (Oregon)」の詳細全文を読む スポンサード リンク
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