|Location Map ( geo)|
|Distance:||4.6 miles (7.4 km)|
|Meets:||B6438, B6437, C100|
|Route outline (key)|
The C112 starts on the B6438 towards the eastern end of Reston and heads south, passing under the railway, and then climbing over a low hill to reach the B6437. After a dogleg to the south, the route continues, running south west to reach the C100 at Lintlaw.