You are here: Library Home > Local Studies > Mayo Maps Online > Bald's Map

Bald's Map of the Maritime County of Mayo

History

This map by William Bald was printed in 25 sheets in 1830 and was actually surveyed between the years 1809-1816.

William Bald was born in Scotland c. 1789 and came to Ireland in 1809 where, on the recommendation of the officers of the British Ordnance Survey, he was appointed director of the Trigonometrical Survey of Mayo, which had been commissioned by the Mayo Grand Jury. The map was surveyed on a scale of four inches to the English mile and drawn on a scale of three inches to a mile.

The publication of the map aroused a certain amount of controversy locally because of what was perceived as being its exorbitant cost - £6372, which was a considerable sum in 1830. However it is considered to be the finest example of Irish cartography prior to the Ordnance Survey maps. Apart from the detailing of the physical features, a very important aspect of the map from a historical perspective, is the fact that it contains nearly 5,000 place-names.

Software Requirements

All the following maps will be displayed by using the DjVu-Viewer plugin. If you're in doubt if it's installed on your computer and that you've got the right version please go to our DjVu-Viewer installation web page.

Access the Map Sheets through the Sheets Grid

All links in this section will open a new window.

To open a map sheet click on a grid field or choose from the complete sheet list in the next section.

Sheet 1 thumbnail. Click on it to look, for example, at the northern end of the Mullet peninsula, Erris Head, Eagle Island. Sheet 2 thumbnail. Click on it to look, for example, at the northern end of Broadhaven Bay, Benwee Head, Belderg, Glenamoy. Sheet 3 thumbnail. Click on it to look, for example, at Ballycastle, Downpatrick Head, Killala. Sheet 4 thumbnail. Click on it to look, for example, at the southern end of Bartragh Island. This sheet shows mostly a part of the map label. Sheet 5 thumbnail. This sheet has no map content but shows the central part of the map label. Sheet 6 thumbnail. Click on it to look, for example, at the Mullet peninsula from Belmullet to Blacksod Point, North and South Inishkea. Sheet 7 thumbnail. Click on it to look, for example, at the southern end of Broadhaven Bay, Bangor, Gweesalia, Nephin Beg. Sheet 8 thumbnail. Click on it to look, for example, at Bellacorick, Crossmolina, Lough Conn, Nephin. Sheet 9 thumbnail. Click on it to look, for example, at Ballina, Foxford, Bunnyconnellan. Sheet 10 thumbnail. Click on it to look, for example, at Ballahy (part of today's Charlestown), Edmondstown. Sheet 11 thumbnail. Click on it to look, for example, at the western half of Achill Island, Dooagh, Slievemore, Keel, Doogort. Sheet 12 thumbnail. Click on it to look, for example, at the eastern half of Achill Island, Inishbiggle, Corraun peninsula, Mulranny / Mallaranny. Sheet 13 thumbnail. Click on it to look, for example, at Castlebar, Newport, Lough Feeagh and Furnace, Beltra Lough. Sheet 14 thumbnail. Click on it to look, for example, at Swinford, Kiltamagh, Knock, Lough Cullin, Turlough, Straid, Balla. Sheet 15 thumbnail. Click on it to look, for example, at Ballyhaunis, Kilkelly, Ballaghaderreen. Sheet 16 thumbnail. Click on it to look, for example, at the applied MAYO TRIANGULATION and also the island of Inishturk. Sheet 17 thumbnail. Click on it to look, for example, at Clare Island, Louisburgh, Cregganbaun, Glencullin Lough. Sheet 18 thumbnail. Click on it to look, for example, at Westport, Croagh Patrick, Aghagower, Ballyhean, Tourmakeady. Sheet 19 thumbnail. Click on it to look, for example, at Ballinrobe, Claremorris, Ballindine, Hollymount, Lough Carra. Sheet 20 thumbnail. Click on it to look, for example, at the applied MAP SCALES and, among other place, Irishtown. Sheet 21 thumbnail. Click on it to look, for example, at the islands of Inishboffin and Inishshark. Sheet 22 thumbnail. Click on it to look, for example, at the entry to Killary Harbour, Doo Lough, Mweelrea Mountains. Sheet 23 thumbnail. Click on it to look, for example, at the end of Killary Harbour and Leenaun. Sheet 24 thumbnail. Click on it to look, for example, at Cong, Kilmaine, Shrule, Neale. Sheet 25 thumbnail. Click on it to look at the applied HEIGHT REFERENCES.
indexImage

Access the Map Sheets through the Sheets List

All links in this section will open a new window.


Choose an individual sheet from the following overview. It lists the sheets from the upper left grid corner to the lower right grid corner, i.e. from west to east and north to south.