| RHP258/4 | Architectural drawing of Arrochar Wharf, Dunbartonshire | c 1853 |
| RHP5700 | Bound plans and sections of Dumbarton Water supply from Loch Sloy Reservoir and plan showing boundaries of proposed extension of burgh of Dumbarton. (Book of Reference bound in.) | 1906 |
| RHP6782 | Plan of proposed lines of road from Tarbet on Loch Lomond to Cairndow on Loch Fyne | 1807 |
| RHP9096 | Plan and section of proposed canal between Loch Long at Arrochar and Loch Lomond at Tarbet | 1821 |
| RHP9158 | Plan of the churchyard at Arrochar Parish Church, noting owners of plots of ground | 1774 |
| RHP130100-130101 | Two hand coloured drawings showing elevations, plans, sections and details of bridge over road and stream near Ardlui (West Highland Railway) | 1891 |
| RHP13127 | Tracing plan and elevation of Arrochar Pier: 1892. | 1892 |
| RHP13314 | Plan of road from the Schoolhouse of Luss to the Bride at Loch Longhead and of the road from Tarbet to Inverarnan | 1827 |
| RHP15052 | Bound plans and sections of the extension of the Strathendrick and Aberfoyle Railway from Aberfoyle to Crianlarich | 1882 |
| RHP15551 | Bound plans and sections of the Glenfalloch Railay from Crianlarich to Ardlui: 1887 | 1887 |
| RHP15553 | Bound plans and sections of the Callander and Oban Railway branch from Crianlarich to Ardlui on Loch Lomond: 1888 | 1888 |
| RHP15965 | Bound plans and sections of the Scottish Grand Junction Railway from Callander by Tyndrum to Oban with branches to Dalwhinnie, Loch Lomond and Killin | 1845 |
| RHP16353 | Plan of West Highland Railway from East Milligs to Craigendoran Junction, from beyond Inveruglas Isle to Tarbet and from Ardlui to Ardvorlich. | 1889 |
| RHP16750 | Bound plans and sections of branch of the Callander and Oban Railway between Crianlarich and Ardlui. | 1888 |
| RHP17661 | Plan of the West Highland Railway from Tarbet to Glen Douglas. | 1889 |
| RHP17665 | Plan of the West Highland Railway from [Ardlui] to [Crianlarich]. | 1889 |
| RHP17668 | Plan of the West Highland Railway from Ardlui to beyond Upper Inveruglas. | 1889 |
| RHP18120 | Plan of Ardlui Station (West Highland Railway) | 1892 |
| RHP18121 | Plan and section of Arrochar and Tarbet Station (West Highland Railway). | 1892 |
| RHP18122 | Plan of Arrochar and Tarbet Station (West Highland Railway). | 1892 |
| RHP24068 | Plan and section of Dumbarton-Arrochar road south of Arrocha, the locus of an accident. | 1929 |
| RHP30162 | Bound plan and sections of extensions to Loch Sloy project of North of Scotland Hydro-Electric Board. | 1948 |
| RHP39149 | Ordnance Survey 1 inch map (sheet 46), marked to show Glenfalloch Railway. | 1883 |
| RHP45154 | Ordnance Survey 1 inch map marked to show line of proposed railway from Arrochar Station to St Catherines. | 1907 |
| RHP47234 | Plan of part of River Falloch between Inverarnan and Ardlui | 1881 |
| RHP47250 | 1. Bound plans and sections of Dumbarton Water works and burgh extension: construction of reservoir at Loch Sloy and conduit to Dumbarton via Tarbet and Alexandria (book of reference with Gazette notice bound in)
2. Duplicate of no.1
3. Draft provisional order | Nov 1906 |
| RHP47385 | 1. Bound plans and sections of Strathendrick and Aberfoyle Railway extension to Crianlarich
2. Book of reference with Gazette notice | Nov 1882 |
| RHP47386 | 1. Bound plans and sections of Glenfalloch Railway line from Callander and Oban Railway near Crianlarich to Loch Lomond
2. Book of reference
3. Duplicate of no.1 | Nov 1887 |
| RHP47387 | 1. Bound plans and sections of Callander and Oban Railway branch to Loch Lomond
2. Book of reference with Gazette notice
3-4. Duplicates of no.1-2 | Nov 1888 |
| RHP47391 | 1. Bound plans and sections of West Highland Railway deviations: 1889 2. Book of reference with Gazette notice 3. Duplicate of no.1 | 1889 |
| RHP76179 | Ordnance Survey 6 inch plan (Argyllshire, sheet CXV.SW; Dunbartonshire, part of sheet II; Perthshire, part of sheet CI) marked to show farm boundary | [1944-1954] |
| RHP76220 | Ordnance Survey 6 inch plan (Argyllshire, sheet CXXXV.SW; Dunbartonshire, part of sheet V) marked to show farm boundary | [1944-1954] |
| RHP76369 | Ordnance Survey 6 inch plan (Argyllshire, sheet CXXVII.NW; Dunbartonshire, parts of sheets II & IV) marked to show farm boundaries | [1944-1954] |
| RHP76370 | Ordnance Survey 6 inch plan (Argyllshire, sheet CXXVII.SW; Dunbartonshire, part of sheet IV) marked to show farm boundary | [1944-1954] |
| RHP77566 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet III.NE; Argyllshire, parts of sheets CXXVI & CXXVII) marked to show farm boundary | [1944-1954] |
| RHP77567 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet V.NE) marked to show farm boundary | [1944-1954] |
| RHP77568 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet V.SW) marked to show farm boundaries | [1944-1954] |
| RHP77569 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet V.SE) marked to show farm boundaries | [1944-1954] |
| RHP77592 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet V.NE) marked to show farm boundaries | [1944-1954] |
| RHP77600 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet V.SW) marked to show farm boundaries | [1944-1954] |
| RHP77607 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet V.NW; Argyllshire, part of sheet CXXXV) marked to show farm boundary | [1944-1954] |
| RHP77618 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet V.SE) marked to show farm boundaries | [1944-1954] |
| RHP79550 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet II) marked to show farm boundaries: [1944 x 1954] | nd |
| RHP79551 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet IV) marked to show farm boundaries: [1944 x 1954] | nd |
| RHP79553 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet VII) marked to show farm boundaries: [1944 x 1954] | nd |
| RHP81079 | 1. Bound plans and sections of Strathendrick and Aberfoyle Railway extension to Crianlarich: November 1882
2. Book of reference
3. Duplicate of no.1 | Nov 1882 |
| RHP82687 | Sketch plan showing distances between Ardlui, Upper Inveruglas and Tarbet | [1890] |
| RHP82688 | Sketch plan showing distances between Ardlui Hotel and Garristuck | [1890] |
| RHP82998 | 1. Bound plans and sections of Strathendrick and Aberfoyle Railway extension from Aberfoyle to Crianlarich: November 1882
2. Book of reference and Gazette notice
3. Duplicate of no. 1 | Nov 1882 |
| RHP83004 | 1. Bound plans and sections of Glenfalloch Railway from junction with Callander and Oban Railway near Crianlarich Station to Loch Lomond near Ardlui Hotel: November 1887
2. Book of reference and Gazette notice
3. Duplicate of no. 1 | Nov 1887 |
| RHP83006 | 1. Bound plans and sections of Callander and Oban Railway branch line to Loch Lomond from junction near Crianlarich to Loch Lomond near Ardlui Hotel: November 1888
2. Book of reference and Gazette notice
3-4. Duplicates of nos. 1-2 | Nov 1888 |
| RHP83201 | 1. Plan and sections of Scottish Western Railway from near Inverarnan to Balloch: 1845
2-3. MS books of reference
4. Duplicate of no. 1 | 1845 |
| RHP83297 | 1. Bound plans and sections of Glenfalloch Railway from Callander and Oban Railway near Crianlarich to Loch Lomond: November 1887
2. Book of reference
3. Gazette notice
5. Duplicate of no. 1 | Nov 1887 |
| RHP83299 | 1. Bound plans and sections of Callander and Oban Railway branch from near Crianlarich Hotel to Loch Lomond: November 1888
2. Book of reference (Gazette notice bound in)
3-4. Duplicates of nos. 1-2 | Nov 1888 |
| RHP83321 | 1. Bound plans and sections of Strathendrick and Aberfoyle Railway extension from Aberfoyle to Crianlarich: November 1882
2. Book of reference (Gazette notice bound in)
3. Duplicate of no. 1 | Nov 1882 |
| RHP85785 | Plan, elevations and details of Arrochar Pier reconstruction (British Railways) | [1958] |
| RHP86163 | 1. Bound plans and sections of Scottish Western Railway branch line from near Inverarnan to near Balloch: 1845
2. Book of reference
3. Duplicate of no. 1 | 1845 |
| RHP92976 | Plan of proposed Glenfalloch Railway line from Callander and Oban Railway near Crianlarich to Ardlui | [1887] |
| RHP92977 | Ordnance Survey 6 inch plan (Dunbarton, part sheets I-IV), marked to show line of proposed Glenfalloch Railway from near Glenfalloch to Ardlui | 4 Jan 1888 |
| RHP93006 | Plan of ground at Ardlui Station and Hotel | 17 Mar 1896 |
| RHP95789 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet V.NW; Argyllshire, part of sheet CXXXV) coloured to show classification of land | [1944-1955] |
| RHP95790 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet V.SW; Argyllshire, parts of sheets CXXXV & CXLIII) coloured to show classification of land | [1944-1955] |
| RHP95791 | Ordnance Survey 6 inch plan (Dunbartonshire, sheet V.SE) coloured to show classification of land | [1944-1955] |
| RHP97568 | Ordnance Survey 6 inch plan (Dumbartonshire, sheet VII) coloured to show classification of land | [1944-1954] |
| RHP130090 | Drawing showing elevations, plan and sections for proposed renewal of cattle creep No 53 near Arrochar (London and North Eastern Railway) | 1923-1947 |
| RHP130091 | Engineering drawing of bridge over Public Road near Tarbet [No 59] (West Highland Railway) | 1890 |
| RHP130092 | Engineering drawing of bridge over Public Road near Tarbet [No 59] (West Highland Railway) | c 1890 |
| RHP130093 | Engineering drawing of bridge over Public Road near Tarbet [No 59] (West Highland Railway) | c 1890 |
| RHP130095 | Hand coloured drawing showing elevations, plans and sections of Cattle Creeps [Nos. 76, 81, 85] near Ardlui (West Highland Railway) | c 1890 |
| RHP130096 | Hand coloured drawing showing elevations, plan, sections and details for renewal of Bridge No 83 under railway near Ardlui (London and North Eastern Railway) | 1940 |
| RHP130097 | Drawing showing elevations, plans and sections of Bridge No 84 over stream near Ardlui (West Highland Railway) | c 1890 |
| RHP130098 | Drawing showing sections of creeps and bridge over stream at Inverarnan near Ardlui (West Highland Railway) | c 1890 |
| RHP130099 | Hand coloured drawing showing elevations, plan and sections of subway for Ardlui Station (West Highland Railway) | c 1893 |
| RHP130102 | Drawing showing elevations, plan and section of timber accommodation bridge [No 89] over railway north of Ardlui (West Highland Railway) | c 1891 |
| RHP130103 | Copy drawing showing elevations, plan sections and details for proposed renewal of timber accommodation bridge [No 89] north of Ardlui (London and North Eastern Railway) | 1923-1947 |
| RHP130216 | Hand coloured drawing showing elevations, plans and sections of two bridges [Nos 88 and 92] over streams between Ardloi and Glen Falloch (West Highland Railway) | 1891 |
| RHP130915 | Elevations, plans and sections of (1) Cattle Creep under railway near Glen Douglas [No 44] and (2) Cattle Creep under railway north of Arrochar [No 66] on West Highland Railway (North British Railway). | c1923 |
| RHP130916 | Elevation, plan and section at Trestle Bridge over railway for Occupation Road at Blairannich on West Highland Railway (North British Railway). | c1923 |
| RHP130917 | Elevation, plan and sections of bridge over stream at Blairannich [No 68] on West Highland Railway (North British Railway). | c1923 |
| RHP130936 | Drawing showing elevations, plan, sections and details of Bridge No 83 near Ardlui on West Highland Branch (London and North Eastern Railway) | 19 Jan 1940 |
| RHP130937 | Hand tinctured drawing showing elevations, plan, sections and details for proposed renewal of cattle creep No 53 near Arrochar on West Highland Line (London and North Eastern Railway) | 23 Jan 1931 |
| RHP130938 | Drawing showing elevation plan and section of trestle bridge No 67 over railway near Arrochar on West Highland Line (London and North Eastern Railway) | 10 Apr 1945 |
| RHP130939 | Drawing showing elevation, plan, sections and details for proposed renewal of Cattle Creep No 89 near Ardlui on West Highland Line (London and North Eastern Railway) | 1923-1947 |
| RHP131059 | One of two drawings showing plan, section and details of proposed renewal of floor of bridge No 70 over Inveruglas Water (London and North Eastern Railway) | 1923-1947 |
| RHP131060 | One of two drawings showing plan, section and details of proposed renewal of floor of bridge No 70 over Inveruglas Water (London and North Eastern Railway) | 1923-1947 |
| RHP131081 | One of two drawings showing elevations, plans, sections and details of Bridge [No 72] over pipe line for Loch Sloy Hydro Electric Scheme near Inveruglas (London and North Eastern Railway) | 5 Jan 1946 |
| RHP131082 | One of two drawings showing elevations, plans, sections and details of Bridge [No 72] over pipe line for Loch Sloy Hydro Electric Scheme near Inveruglas (London and North Eastern Railway) | 5 Jan 1946 |
| RHP135614 | Hand tinctured elevations, plan and sections of a proposed bridge over a burn (quarter of a mile north of Ardmay), (West Highland Railway Company) | 22 September 1891 |
| RHP135615 | Hand tinctured elevations, plan and sections of a proposed bridge over (the Ant-Sreang Burn), Arrochar, (West Highland Railway Company) | 4 October 1890 |
| RHP135616 | Hand tinctured elevation, plan and sections of a proposed viaduct at Creag en Ardain, a mile north of Inveruglas, (West Highland Railway Company) | 1892 |
| RHP135617 | Elevation, plan and section showing parapet wall detail for a proposed viaduct at Creag en Ardain, a mile north of Inveruglas, (West Highland Railway Company) | 15 November 1892 |
| RHP135618 | Elevations showing masonry details of the piers of the Creag en Ardain Viaduct, a mile north of Inveruglas (as built), (West Highland Railway Company) | 1893 |
| RHP135619 | Elevations, plan and sections of a proposed bridge over the Allt Ardvorlich burn, a mile and three quarters north of Inveruglas, (West Highland Railway Company) | 1893 |
| RHP136016 | Plan of proposed passing place and siding at Inveruglas, (for Loch Sloy Hydro-Electric Scheme), (London & North Eastern Railway) | 12 September 1945 |