At 11.30pm on Wednesday 10 May 2017, Police were informed of a road traffic collision on the C1S, Old Military Road approximately one mile outside of Castle Douglas.
Emergency services attended and sadly found the 59-year-old male rider of a black coloured Triumph motorcycle had died at the scene.
The road was closed to allow collision investigation to take place and re-opened around 0450 hours this morning, Thursday 11 May 2017.
Constable Hazel Smyth of the Road Policing Unit said: