The Băcâia () is a left

tributary A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they ...

of the river

Geoagiu Geoagiu (, ) is a town in Hunedoara County, in the historical region of Transylvania, Romania. It administers ten villages: Aurel Vlaicu (until 1925 ''Binținți''; ''Bencenc''), Băcâia (''Bakonya''), Bozeș (''Bózes''), Cigmău (''Csigmó''), ...

in Romania which flows into the Geoagiu in Bozeș. Its length is and its basin size is .

References

Rivers of Hunedoara County Rivers of Romania {{Hunedoara-river-stub