| RHP219 | Plan of the boundary between the lands of Cullisse and the Lands of Meikle Allan, Ross and Cromarty | 1761 |
| RHP239 | Plan of part of the lands of Ankerville and Meikle Allan, Ross and Cromarty | 7 Jun 1759 |
| RHP680 | Plan of the Hill of Nigg as divided, Ross and Cromarty | 1763 |
| RHP3086 | Architectural plan of Westfield House, Nigg, Ross and Cromarty | nd |
| RHP6393 | Plan of the estate of Cromarty, Ross and Cromarty | 1825 |
| RHP7818 | Plans of water supply to Nigg manse and school, Ross and Cromarty | Apr 1928 |
| RHP13066 | Sketch plan of Cove Harbour: 1891. | 1891 |
| RHP13299/12 | Plan of Hill of Nigg | 1808 |
| RHP13299/13 | Plan of Hill of Rarichie | 1808 |
| RHP13299/14 | Plan of Easter Rarichie etc | 1808 |
| RHP13299/15 | Plan of Loans of Rarichie | 1808 |
| RHP34647 | Plan of estate of Pitcalnie, Nigg, Ross and Cromarty | 1812-1831 |
| RHP34648 | Plan of estate of Pitcalnie, Nigg, Ross and Cromarty | 1754 |
| RHP44301 | Plan of proposed line of Aberdeen Railway between Findon and Cove Bay. | 1844 |
| RHP44302 | Plan and section of Aberdeen Railway between [Findon] and Cove Bay. (Damaged) | 1846 |
| RHP44703 | Plan of present and proposed march between the lands of Allan and Cullisse. | 1803 |
| RHP49024 | Plan of lands of Altens belonging to Rev William Shand, Lumphanan, produced in causa Shand v Morrice and Johnston | 1812-1813 |
| RHP49031 | Ordnance Survey 6 inch plan (Kincardineshire, sheet IV) marked between Craiginches and North Kirkhill relative to case involving Alexander Christie and others | 1890 |
| RHP49069 | Plan and section of line of Caledonian Railway near Ness Farm showing locus of accident to sheep, produced in causa Campbell v Caledonian Railway Company | 3 May 1898 |
| RHP49070 | Plan of line of Caledonian Railway near Ness Farm, with pictorial elevation of bridge and pictorial elevations and sections of dyke, showing locus of accident to sheep, produced in causa Campbell v Caledonian Railway Company | 1898 |
| RHP49087 | Proposed poster panels to be erected at Checkbar (Chekebar) Croft and Mains of Charlestown Farm on Aberdeen-Stonehaven Road | 1934 |
| RHP79277 | Ordnance Survey 6 inch plan (Ross and Cromarty, sheet LV) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP79285 | Ordnance Survey 6 inch plan (Ross and Cromarty, sheet LV) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP79287 | Ordnance Survey 6 inch plan (Ross and Cromarty, sheet LXVII) coloured and marked to show types of farming and farm boundaries | [1944-1955] |
| RHP82250 | Plan of farms and lots on estate of Westfield and Pitcalzean, Ross and Cromarty | 1830 |
| RHP82798 | Plan of present and intended course of the march between Easter Rarichie (Rorichies) belonging to Captain Ross of Balnagown and Wester Rarichie (Rorichies) belonging to Mr Ross of Inverchasly | 1765 |
| RHP97679 | Ordnance Survey 6 inch plan (Ross and Cromarty, sheet LV) coloured and marked to show classification of land | [1944-1954] |
| RHP97682 | Ordnance Survey 6 inch plan (Ross and Cromarty, sheet LXVII) marked to show classification of land | [1944-1954] |
| RHP143400/8/28 | Ordnance Survey 6 inch plan, Ross and Cromarty, Sheet NH 77 SE | 1960s-1970s |
| RHP143400/8/40 | Ordnance Survey 6 inch plan, Ross and Cromarty, Sheet NH 87 NW | 1960s-1970s |
| RHP143400/8/42 | Ordnance Survey 6 inch plan, Ross and Cromarty, Sheet NH 87 SW | 1960s-1970s |