默塞德河, 优胜美地国家公园, 加利福尼亚, 美国 Merced River, Yosemite National Park, California, USA (© Ron and Patty Thomas/Getty Images)

默塞德河, 优胜美地国家公园, 加利福尼亚, 美国 Merced River, Yosemite National Park, California, USA (© Ron and Patty Thomas/Getty Images)

冰封的倒影 Frozen reflections

默塞德河, 优胜美地国家公园, 加利福尼亚

每一幅杰作都需要点睛之笔。而优胜美地的点睛之笔便是默塞德河。作为美国国家级“野生与风景河流”之一，这条水系起源于内华达山脉高处，汇集雪水，蜿蜒145英里，穿过优胜美地山谷，流入加州中央谷地。

这条河的西班牙语名"El Río de Nuestra Señora de la Merced"，意为"慈悲圣母河"，恰如其分地诠释了它的双重性：随季节更迭，时而宁静如镜，时而奔腾如潮。春季，融雪使河水暴涨，激流在石桥下奔涌，冲过如春瀑、内华达瀑等轰鸣的瀑布群，成为优胜美地的主角。夏季河水转为平缓，吸引着漂流者和游泳者。秋日落叶随水漂流，为河面添上点点金黄；冬日万物归寂，河面如镜般澄澈。有趣的是，这条河滋养着麦克卢尔湖——每逢秋冬季水位下降，湖底便会浮现一座鬼城。河流下游曾矗立着默塞德瀑布，这座淘金热时期繁华的磨坊小镇，如今已归于沉寂。

Merced River, Yosemite National Park, California

Every masterpiece needs a brushstroke to tie it together. For Yosemite National Park, that stroke is the Merced River—painting reflections of granite cliffs, pine forests, and waterfalls across its canvas. One of the National Wild and Scenic Rivers, this waterway begins high in the Sierra Nevada. It gathers meltwater and winds 145 miles west through Yosemite Valley into California's Central Valley.

Its Spanish name, 'El Río de Nuestra Señora de la Merced,' translates to 'River of Our Lady of Mercy,' and suits it well: it offers both calm and chaos depending on the season. Spring turns the river into Yosemite's main act, as snowmelt sends torrents rushing beneath stone bridges and past roaring waterfalls like Vernal and Nevada Falls. Summer brings a gentler flow that attracts rafters and swimmers. Fall adds a hint of gold as leaves drift downstream, and winter slows everything to a reflective stillness. Interestingly, it feeds Lake McClure, where a ghost town rises when water levels drop in fall and winter. Along its lower stretches once stood Merced Falls, a bustling mill town during the Gold Rush era, now lying quiet.