| RHP13393 | Ordnance Survey 6 inch plan marked to show the glebe of Lochs: 1874. | 1874 |
| RHP21139 | Ordnance Survey 6 inch plan marked to show proposed new holdings at Orosay and Stemervay | 1914 |
| RHP24963 | Plan of line of march between Lewis and Harris from Loch Seaforth to Loch Resort (Reysort). | 1850 |
| RHP34135 | Admiralty chart of approaches to Stornoway. | 1901 |
| RHP35128/1-13 | Plans showing feus for churches in Lewis, Ross and Cromarty | 1909 |
| RHP40665 | 1-2. Ordnance Survey 1 inch maps (sheets 13 and 14), marked to show estate between Loch Langavat and Raerinish, belonging to late H.G. Thornton. | 1950 |
| RHP43267 | Plan of island of Lewis, Ross and Cromarty | 1821 |
| RHP43422 | Ordnance Survey 6 inch plan marked to show road from Cromore to Gravir and branch to Calbost. | 1902 |
| RHP43423 | Plans, elevation and section of footbridge at Grimshader. | 1906 |
| RHP43425 | Ordnance Survey 1 inch map to show roads between Stornoway and Carloway. | 1907 |
| RHP44254 | Ordnance Survey 6 inch plan with tracing attached marked round Keose Church to show new glebe, and land ownership. | 1854 |
| RHP44255 | Ordnance Survey 6 inch plan marked to show proposed smallholdings scheme for Board of Agriculture for Scotland at and round Orosay. | 1913 |
| RHP82899 | Plan of the tacks of St Colum's and Cromor in the Park Parish of Lochs, Lewis Island, Ross and Cromarty | [c 1760-1770] |
| RHP98447 | Sketch plan of situation, boundaries and principal pertinents of the tacks of Eilean Chaluim Chille (St Colum's) and Cromore (Cromor) | 1778 |
| RHP117149 | Plan of proposed new cemetery at Laxay, Isle of Lewis | Oct 1975 |
| RHP117150 | Plan of proposed new cemetery at Crossbost, Isle of Lewis | Dec 1975 |
| RHP142646 | Plan of culverts on Cromore and Graver roads, Lochs | 2 Feb 1904 |
| RHP143000/3/12 | Ordnance Survey 1 inch map (Sheet 99, [Isle of Lewis]) | 1858 |
| RHP143000/3/18 | Ordnance Survey 1 inch map (Sheet 105, [Isle of Lewis]) | 1858 |
| RHP143400/3/12 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 21 NW | 1981 |
| RHP143400/3/13 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 21 NE | 1981 |
| RHP143400/3/14 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 22 NE | 1981 |
| RHP143400/3/15 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 22 SE | 1981 |
| RHP143400/3/21 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 31 NW | 1981 |
| RHP143400/3/22 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 31 NE | 1981 |
| RHP143400/3/23 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 31 SE | 1981 |
| RHP143400/3/24 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 32 NW | 1981 |
| RHP143400/3/25 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 32 NE | 1981 |
| RHP143400/3/26 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 32 SE | 1981 |
| RHP143400/3/27 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 32 SW | 1981 |
| RHP143400/3/33 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 41 NW | 1981 |
| RHP143400/3/34 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 42 NW | 1981 |
| RHP143400/3/35 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 42 SW | 1981 |
| RHP143400/3/39 | Ordnance Survey 1/10000 plan, Ross and Cromarty (Lewis and Harris), Sheet NB 43 SW | 1981 |