2 occurrences in 2 dictionaries
Reference: Baca, Valley Of
Easton
(Ps 84:6; R.V., "valley of weeping," marg., "or balsam trees"), probably a valley in some part of Palestine, or generally some one of the valleys through which pilgrims had to pass on their way to the sanctuary of Jehovah on Zion; or it may be figuratively "a valley of weeping."
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Hastings
An allegorical place-name, found only in Ps 84:6, where the RV renders 'Valley of Weeping.' Most probably it is no more an actual locality than is the 'Valley of the Shadow of Death' in Ps 23:4.
R. A. S. Macalister.