我们在黄石公园第一个要游览的景区是猛犸温泉区(Mammoth Hot Spring)。这个温泉区位于公园的西北角,其特点是是温泉形成的石灰岩地貌。它原来是好几个温泉涌出泉眼后逐步冷却,形成一个石灰池,石灰池里的温泉水满后又继续溢出,再形成下一层的石灰池,一层一层,加上被各种细菌染得五颜六色,形成一个非常漂亮的五彩梯田;死掉的细菌变成灰白色的粉末,残留在干枯了的石灰岩上,反射著耀眼的阳光,将这里变成一片肃刹的不毛之地。这里树木因长时间的热气及硫磺烟熏,都已经死亡殆尽,只剩下残枯的树干。
在这片区域,随处可见的是暗褐色或者其他彩色的小河,像是黄石公园的血液。
黄石公园的天气多变,一会儿乌云密布,一会儿艳阳高照。很适合摄影爱好者捕捉不同天气条件下的景观。
我们继续前往西部的诺里斯间歇泉盆地(Norris Geyser Basin),这里是黄石公园里年代最古老,热度最高而变化最剧烈的间歇泉盆地,有很多活跃的热喷泉。这里有一个很著名的间歇泉名叫蒸气船间歇泉(Steamboat Geyser),是世界上喷发最高的间歇泉,水柱高达一百米以上,可惜它的喷发时间没有规律完全不可预测,大多数时候只能看到蒸汽缭绕以及喷出的零星小股水柱。
下午游览黄石公园西北区就要结束了,以两张全景图(点击可以看到全幅)作为该区的纪念,可以一睹猛犸温泉区的全貌。
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