A99 road
The A99 road is entirely within the former county of Caithness in the Highland of Scotland. It runs generally north/northeast from the A9 at Latheron to Wick and to the A836 at John o' Groats. It was part of the A9 until the A9 classification was transferred to what had been the A895-A882 link between Latheron and Thurso. Between Latheron and Wick it follows, mostly, the route of one of Telford's roads.
Towns, villages and junctions
The A99 runs through or near towns and villages listed below. Junctions listed are with other classified roads.| Places and junctions | Ordnance Survey grid references & notes |
| Latheron, A9 | . From Latheron the A9 runs generally south to Inverness, Perth and Falkirk, and north to Thurso. |
| Thrumster | |
| Wick, A882 | . From Wick the A882 runs west/northwest to the A9 in the Georgemas area. |
| Lochshell, B874 | . From Lochshell the B874 runs west to a crossroads with the A9 in the Georgemas area, then to Halkirk, and then north to the A9 in Thurso. |
| Reiss, B876 | . From Reiss the B876 runs northwest to the A836 at Castletown. |
| John o' Groats, A836 | . From John o' Groats the A836 runs generally west to Castletown, Thurso and Tongue and then south to Lairg and Bonar Bridge then the A9 near Tain. |