| RHP2758 | Plan and sections of pier and adjoining ground at Tighnabruiach, Argyll | 14 Feb 1864 |
| RHP6361 | Plan of the estate of Ardmarnoch, Argyll | 1850 |
| RHP11652 | Plan of the mouth of Loch Fyne, from Tarbert to Ardlamont Point. | 1806 |
| RHP13415 | Ordnance Survey 6 inch plan (Argyllshire & Buteshire, CXCIII.N.W.) of Kyles of Bute at Auchenlochan: 1901. | 1901 |
| RHP22295 | Plan of Millhouse feus on Ardlamont estate | 1914 |
| RHP31830 | Photostat copy of bound plans and elevation of Auchenlochan Pier | 1878 |
| RHP49574 | Volume of Ordnance Survey 6 inch and 1/2500 plans (22) marked to show boundaries of Ardlamont Estate and sundry feus, with table of contents | 5 July 1878 |
| RHP76252 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXXI.SE) marked to show farm boundaries | [1944-1954] |
| RHP76253 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXXI.NE) marked to show farm boundaries | [1944-1954] |
| RHP76256 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXXI.NE) marked to show farm boundaries | [1944-1954] |
| RHP76258 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXXI.SE) marked to show farm boundaries | [1944-1954] |
| RHP76273 | Ordnance Survey 6 inch plan (Argyllshire, sheet CXCII.NE) marked to show farm boundaries | [1944-1954] |
| RHP76274 | Ordnance Survey 6 inch plan (Argyllshire, sheet CXCII.SE) marked to show farm boundaries | [1944-1954] |
| RHP76407 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXI.NE) marked to show farm boundaries | [1944-1954] |
| RHP76409 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXI.SE) marked to show farm boundaries | [1941-1943] |
| RHP76410 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXII.NW) marked to show farm boundaries | [1944-1945] |
| RHP76412 | Ordnance Survey 6 inch plan (Argyllshire, sheet CLXXII.SW) marked to show farm boundaries | [1944-1945] |
| RHP76537 | Ordnance Survey 6 inch plan (Argyllshire, sheet CCII.NE) marked to show farm boundaries | [1944-1945] |
| RHP81334 | Ordnance Survey 6 inch plan marked to show estates of Acharosson, Auchanaskioch, Melldalloch, Ardmarnoch, Portavaidue and Craignafeigh | [c 1882] |
| RHP82698 | 1. Ordnance Survey 1/2500 plan of grounds around Ardlamont House and enlarged plan of portions of same, marked to show locus of murder: 18 November 1893
2. Duplicate of no.1, with additional annotations | 18 Nov 1893 |
| RHP82699 | Plan of sections of ground in plantation near Ardlamont House | [1893] |
| RHP86160 | Bound plans and sections of Otter Ferry Pier showing works to be executed under provisional order (Gazette notice bound in) | Nov 1898 |
| RHP143339 | Plan of new burial ground at Kilbride near Tighnabruaich | 1901 |