Ua-var, as the name is pronounced, or more properly Uaighmor, is a mountain to the north-east of the village of Callender in Menteith, deriving its name, which signifies the great den, or cavern, from a sort of retreat among the rocks on the south side, said, by tradition, to have been the abode of a giant. In latter times, it was the refuge of robbers and banditti, who have been only extirpated within these forty or fifty years. Strictly speaking, this stronghold is not a cave, as the name would imply, but a sort of small enclosure, or recess, surrounded with large rocks, and open above head. It may have been originally designed as a toil for deer, who might get in from the outside, but would find it difficult to return. This opinion prevails among the old sportsmen and deer-stalkers in the neighbourhood.
From an appendix to ‘The lady of the lake in six cantos‘ by Walter Scott (1835). Uamh Mhor is marked just to the south of Uamh Bheag.