The B7003 is a winding link road in central Midlothian. It was originally unclassified but had gained its number by 1932.
The road starts at the Gowkley Moss roundabout on the A701 and heads east, soon reaching Roslin. We skirt the urban area, passing the backs of houses on an adjacent street before the road TOTSOs right to avoid running into town; the road ahead is the B7006.
A sign warns us the road is unsuitable for long vehicles as we follow a winding route down into the wooded Roslin Glen. As a result of the sharp bends the road is never particularly steep. We go over the River North Esk and then wind back into open fields. After a straight section the road bears round to the right to end at a T-junction on the A6094 Rosewell bypass. Before the bypass was built our road zigzagged left then right to enter Rosewell along Gorton Road to end on Carnethie Street, the pre-bypass main road.