| RHP679 | Plan of the contraverted grazings of Fionauld, Sutherland | 1768 |
| RHP5232 | Bound plans and sections for piers at Lochinver and Loch Na Claise. | 1905 |
| RHP5469 | Bound plan and sections of proposed works at Loch Bervie harbour. | 1958-1959 |
| RHP11601 | Plan of intended road from Scourie Bay on the North Sea to Portinleck Ferry on the Dornoch Firth. (Vignette of river and deer.) | 1794 |
| RHP13248 | Sketch plan of pier at Loch Clash: 1891. | 1891 |
| RHP22562 | Plan of the marches between the Reay and Sutherland estates in the area between Ben Leoid and Fionn Loch Beag | 1822 |
| RHP34145 | Admiralty chart of Lochs Laxford and Inchard and approaches. (Vignette of Handa Island) | 1911 |
| RHP34146 | Admiralty chart of Lochs Laxford and Inchard with Scourie Bay. (Vignettes of Handa Island and entrance to Scourie Bay) | 1897 |
| RHP34153 | Admiralty chart of Eddrachillis bay and The Glens. (Vignettes of views from Ravens Rock) | 1902 |
| RHP38309 | Ordnance Survey 1 inch map marked to show estate and farm boundaries. | 1963 |
| RHP43419 | 1. Plan of boat slip at Droman. 2. Duplicate of no. 1 | 1896 |
| RHP43420 | Ordnance Survey 6 inch plan (Sutherland, sheet XII) marked to show boat slip at Droman (Druiman). | 1898 |
| RHP43421 | Plans and elevation of pier at Droman (Druiman). | 1902 |
| RHP79350 | Ordnance Survey 6 inch plan (Sutherland, sheet IV) marked to show farm boundaries | [1944-1955] |
| RHP79358 | Ordnance Survey 6 inch plan (Sutherland, sheet XII) marked to show farm boundaries | [1944-1955] |
| RHP79359 | Ordnance Survey 6 inch plan (Sutherland, sheet XIII) marked to show farm boundaries | [1944-1955] |
| RHP79367 | Ordnance Survey 6 inch plan (Sutherland, sheet XXI) marked to show farm boundaries | [1944-1955] |
| RHP79368 | Ordnance Survey 6 inch plan (Sutherland, sheet XXII) marked to show farm boundaries | [1944-1955] |
| RHP79369 | Ordnance Survey 6 inch plan (Sutherland, sheet XXIII) marked to show farm boundaries | [1944-1955] |
| RHP79375 | Ordnance Survey 6 inch plan (Sutherland, sheet XXXI) marked to show farm boundaries | [1944-1955] |
| RHP79376 | Ordnance Survey 6 inch plan (Sutherland, sheet XXXII) marked to show farm boundaries | [1944-1955] |
| RHP79382 | Ordnance Survey 6 inch plan (Sutherland, sheet XXXIX) marked to show farm boundaries | [1944-1955] |
| RHP79383 | Ordnance Survey 6 inch plan (Sutherland, sheet XL) marked to show farm boundary | [1944-1955] |
| RHP79384 | Ordnance Survey 6 inch plan (Sutherland, sheet XLI) marked to show farm boundary | [1944-1955] |
| RHP79392 | Ordnance Survey 6 inch plan (Sutherland, sheet XLIX) marked to show farm boundaries | [1944-1955] |
| RHP79393 | Ordnance Survey 6 inch plan (Sutherland, sheet L) marked to show farm boundaries | [1944-1955] |
| RHP79394 | Ordnance Survey 6 inch plan (Sutherland, sheet LI) marked to show farm boundaries | [1944-1955] |
| RHP79403 | Ordnance Survey 6 inch plan (Sutherland, sheet LX) marked to show farm boundaries | [1944-1955] |
| RHP79404 | Ordnance Survey 6 inch plan (Sutherland, sheet LXI) marked to show farm boundaries | [1944-1955] |
| RHP79405 | Ordnance Survey 6 inch plan (Sutherland, sheet LXII) marked to show farm boundaries | [1944-1955] |
| RHP79413 | Ordnance Survey 6 inch plan (Sutherland, sheet LXXI) marked to show farm boundaries | [1944-1955] |
| RHP79414 | Ordnance Survey 6 inch plan (Sutherland, sheet LXXII) marked to show farm boundaries | [1944-1955] |
| RHP92546 | Copy plan of controverted marches and grazings at Duchally (Douchally) in dispute between Lord Reay and Roderick McLeod of Cadboll | 1766 |
| RHP92547 | Plan of controverted ground at Duchally between Lord Reay and Roderick McLeod of Cadboll, with note added about existence of field book showing how plan was compiled | Jul 1765 |
| RHP93953/34 | General plan of Loch Clash Pier, Kinlochbervie | Nov 1954 |
| RHP143000/3/20 | Ordnance Survey 1 inch map (Sheet 107, [Lochinver]) | 1881 |
| RHP143000/3/26 | Ordnance Survey 1 inch map (Sheet 113, [Cape Wrath]) | 1882 |