A disgusted Ian Hatch, on his was back from Blackheath recently, snapped the photo above at a rest stop bathroom at River Lett Hill before posting to a Lithgow community Facebook group.

"I don't usually rant. But this is disgusting." Ian wrote.

"How can our local council leave public toilets in this condition? I know the area had a lot of transient visitors over the weekend. But there is no excuse for conditions like this."

The Lithgow Mercury reached out to Lithgow City Council to see what could be done. Council confirmed that the rest stop in question is in fact maintained by Transport NSW and is not council's responsibility.

A Transport NSW spokesperson confirmed to the Lithgow Mercury that the amenity in question was responsible for its upkeep and urged anyone that finds an issue with a facility to contact them.

"Transport for NSW is responsible for the maintenance and upkeep of rest areas along state roads, including the Great Western Highway," the spokesperson said.

"The toilets at the rest stop facility at River Lett Hill are routinely cleaned every Tuesday and Friday.

"We recognise rest stops and facilities are important assets for motorists and we aim to keep facilities clean and serviceable.

"It is disappointing when users of these facilities do not respect others and leave facilities in disarray.

"We urge anyone who finds a facility unclean or out of service to contact western.projects@rms.nsw.gov.au and a team will investigate."