Return of the King - Minas Tirith:

“For ten leagues or more it ran from the mountains’ feet and so back again, enclosing in its fence the fields of Pelennor: fair and fertile townlands on the long slopes and terraces falling to the deep level of the Anduin”

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Return of the King - Minas Tirith:

“Pippin could see all the Pelennor laid out before him, dotted in the distance with farmsteads and little walls, barnes and byres, but nowhere could he see any kine or other beasts. Many roads and tracks crossed the green fields, and there was much coming and going :wains moving in lines towards the Great Gate, and others passing out.”

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Return of the King - Minas Tirith:

"The townlands were rich, with wide tilth and many orchards, and homesteads there were with oast and garner, fold and byre, and many rills rippling through the green from the highlands down to Anduin. Yet the herdsmen and the husbandmen that dwelt there were not many, and the most part of the people of Gondor lived in the seven circles of the city, or in high vales of the mountain-borders, in Lossarnach, or further south in fair Lebennin with its five"

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The Atlas of Middle Earth - The White Mountains, Rock Type:

“Only two rock types can be identified in the White Mountains with any assurance: limestone (metamorphosed into marble in certain areas) and intrusive igneous”

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Etymology​

Tolkiengateway - Pelennor Fields:

The name Pelennor translates to "fenced, encircled land" in Sindarin. Christopher Tolkien has noted that the first element derives from the Elvish root/element pel- ("go round, encircle"); the other elements appear to be end (from enedh "middle")' + (n-)dor ("land, dwelling"). The field was called by several other names as well, such as Fields of Pelennor, the Pelennor, and the townlands.

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