The A768 (renumbered from B703 in the early 1930s) traverses approximately 4 miles in southern Scotland from Eskbank (outside Dalkeith) to Bilston, both in Midlothian. It is predominately a two-lane undivided (S2) roadway running through level terrain. The road passes through the small towns to the south of Edinburgh for its entire length and therefore is largely urban.
The A768 is a utilitarian road that serves several of the southern suburbs of Edinburgh, and provides a connection between the A7 and A701. It parallels on the south, and runs relatively close to, the City Bypass (A720). It might even qualify as a "bypass to the bypass" for the motorist desiring a detour or alternative to a segment of the A720.
The eastern terminus of the A768 is at a busy roundabout intersection with the A6094, B703, and B6392 (former A7) in the community of Eskbank. From this point the A768 heads in a westerly direction as a two-lane (S2) road through town, with a 30 mph speed limit. Approximately ½ mile later it crosses the current route of the A7 at a roundabout and goes to NSL as it continues west, passing to the north of Lasswade. Entering the outskirts of Bonnyrigg 1 mile further on the speed limit drops to 30 mph, but shortly after skirting Bonnyrigg it rises to 40 mph. One mile later it enters another suburban town, Loanhead, and the speed limit drops back to 30 mph. After another ½ mile, the centre of Loanhead is reached at the intersection with the B702. Continuing another ½ mile westerly, the speed limit rises to 40 mph although the road remains suburban. The A768 continues for its final ½ mile to a signalized T-junction terminus with the A701 to the north of the centre of Bilston.