One of the reasons Balmain was settled in the early days was the ready access to a copious supply of fresh water from small creeks, natural springs, and water holes. In fact, the early subdivision of Balmain (or Gilchrist Estate) was to ensure equitable access to this important asset. Some lots were actually defined by small creeks and watercourses that had names but are now lost in time.
Balmain had at least 13 such natural waterways and springs and even had small bridges crossing over them. Not a single natural watercourse remains visible from the surface, but they are now subterranean. This project documents the waterways, even though successive Councils have covered them over.