艾利达尼亚区[1]（英語：Eridania quadrangle）是美国地质调查局太空地质学研究计划（Astrogeology Research Program）对火星表面划分的30个区域之一，编号为MC-29。[2]
艾利达尼亚区覆盖了火星西经180°至240°、南纬30°至65°的区域。辛梅利亚高地（Terra Cimmeria）的大部分就位于该区。
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