| RIDGE HILL | OS1/33/26/9 |
| RINAGAY | OS1/33/26/72 |
| RINSCAN | OS1/33/26/56 |
| RISTOCKY | OS1/33/26/75 |
| RISTOCKY BURN | OS1/33/26/75 |
| RIVER BRORA | OS1/33/26/63 |
| RIVER FREE | OS1/33/26/32 |
| RIVER HELMSDALE | OS1/33/26/29 |
| RIVER LOAN | OS1/33/26/21 |
| RUIDHE NA GAOITHE | OS1/33/26/72 |
| RUIDHEAN | OS1/33/26/79 |
| RUINS [Creagruadh] | OS1/33/26/72 |
| Site of BROUGH [Auchandun] | OS1/33/26/38 |
| Site of PICTISH TOWER [Auchandun] | OS1/33/26/38 |
| SRATH NA FRITHE | OS1/33/26/37 |
| STRATH BEAG | OS1/33/26/23 |
| STRATH BEG 1-inch Revision October 1894. | OS1/33/26/23 |
| STRATH BRORA | OS1/33/26/65 |
| STRATH FREE | OS1/33/26/37 |
| STRATH OF KILDONAN | OS1/33/26/31 |
