4 occurrences in 4 dictionaries
Reference: Mithcah
Easton
sweetness, one of the stations of the Israelites in the wilderness (Nu 33:28-29).
Fausets
Place of sweetness, namely, sweet water; a station in Israel's wanderings (Nu 33:28).
Morish
Mith'cah
Place where the Israelites encamped. Nu 33:28-29.