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| | AllRefer.com - Hidalgo, state, Mexico, Mexico (Mexican Political Geography) - Encyclopedia |
 | | Crossed by the Sierra Madre Oriental, the state is extremely mountainous; in the southern and western areas, however, are plains and fertile valleys lying within Mexico's central plateau. |
 | | The climate is warm in the lower valleys, temperate on the plateau, and cold in the mountains. |
 | | Conquered by the Spanish in 1530, it was part of the province and state of Mexico until it became the separate state of Hidalgo in 1869. |
| reference.allrefer.com /encyclopedia/H/HidalgMex.html (282 words) |
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