Ms Bishop, born March 31, 1981, was last seen at 1.20am on Monday in Leura Road, Orange.

She has not made contact with her family or friends and there are concerns for her safety and welfare.

Ms Bishop is described as Caucasian, 165 centimetres in height, solid build of about 90-100 kilograms, blue eyes and short brown hair with orange and blonde highlights.

She was last seen wearing a dark-coloured jumper and black tracksuit pants with no shoes.

Please contact Orange Police on 6363 6399 or Crime Stoppers on 1800 333 000 if you have any information regarding her whereabouts and you can remain anonymous.