Bourbonne-les-Bains (French pronunciation: [buʁbɔn le bɛ̃]) is a commune in the Haute-Marne department in north-eastern France in the region Grand Est.
[3] It is situated on the river Apance, 32 km north-east of Langres.
Bourbonne is a health resort due to hot springs.
These thermal springs were known to the Gauls and to the Romans who built baths.
The Romans called the springs Aquae Borvonis.