Cardolan is a division of Arnor between the Baranduin and the Gwathlo, no mountains. As for the Ered Luin, might I recommend the southern Ered Luin as the site for your village, the northern mountains are almost certainly too dangerous. BTW who lives in this village? Tolkien does say there are no settled dwellings of Men west of the Shire. Of course Bilbo, (from whose book the information is taken) could have been mistaken on that point.
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