| PULLYHOUR | OS1/7/4/147 |
| PULLYHOUR FORD | OS1/7/4/147 |
| QUORAIG | OS1/7/4/121 |
| RED WELL (Chalybeate) | OS1/7/4/42 |
| RIFLE RANGE [Braehour] | OS1/7/4/143 |
| RIFLE RANGE [Halkirk] | OS1/7/4/48 |
| RIVER THURSO | OS1/7/4/96 |
| ROUGIE | OS1/7/4/56 |
| SCHOOL [Achscrabster] | OS1/7/4/21 |
| SCHOOL [Braehour] | OS1/7/4/142 |
| SCHOOL [Free Church, Halkirk] | OS1/7/4/81 |
| SCHOOL [Sinclair St, Halkirk] | OS1/7/4/80 |
| SCHOOL [Spittal] | OS1/7/4/168 |
| SCOTSCALDER [1895] For 1" purposes only, see remarK in Index | OS1/7/4/63 |
| SHARKLEY WELL | OS1/7/4/50 |
| SIBSTER | OS1/7/4/53 |
| SIBSTER BURN | OS1/7/4/88 |
| SIBSTER MOSS | OS1/7/4/157 |
| SINCLAIR STREET [Halkirk] | OS1/7/4/79 |
| Site of BISHOP'S PALACE | OS1/7/4/53 |
