This article is about the Class III road numbered C225 maintained by DfI Roads.
For other roads numbered C225, see C225
The C225 starts on the B135 at Cloghoge and runs south along the west side of the Cullyhanna River until reaching the B30. The road continues south-east from the other side of the river through the small village of Creggan and passes through a small settlement at Glassdrummond before meeting the C226 at Ballsmill just before reaching the border. The C route ends here but the road itself continues south-east in County Louth passing under the M1 to meet the R934 in Dundalk.