Does anyone know if there's an online way to find out the exact coverage of each Landranger and Explorer sheet - i.e. the grid references of the corners, and any areas obscured by the map key on non-rectangular Explorers? The map images on the OS website do not have a high enough resolution. Alternatively, is there a website that will accurately tell me which maps cover a given grid reference? The Ordnance Survey's own product search is not reliable (try searching for NS495015, at http://leisure.ordnancesurvey.co.uk/leisure/searchProcessing.jsp?q=NS495015&x=0&y=0&gazName=g&publisher=allpub, and they will recommend you to buy Explorer 318, whose northern edge is clearly south of the selected point).
I am hoping to set up a website selling OS maps, which would include a Google Maps API with the *exact* Ordnance Survey mapping index overlaid on it, so that customers can zoom and scroll around the index at street level. However, I'd prefer not to spend a week in the library/bookshop writing down all the data.
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Does anyone know if there's an online way to find out the exact coverage of each Landranger and Explorer sheet - i.e. the grid references of the corners, and any areas obscured by the map key on non-rectangular Explorers? The map images on the OS website do not have a high enough resolution. Alternatively, is there a website that will accurately tell me which maps cover a given grid reference? The Ordnance Survey's own product search is not reliable (try searching for NS495015, at http://leisure.ordnancesurvey.co.uk/leisure/searchProcessing.jsp?q=NS495015&x=0&y=0&gazName=g&publisher=allpub, and they will recommend you to buy Explorer 318, whose northern edge is clearly south of the selected point).
Matthew.
I have such a database (in MSAccess) but only for the 100+ OS Landranger (and a few others) sheets in my possession. (I can't check your grid ref as I don't have the relevant map.)
And it did take me a long time inputting the data - especially for the odd extra areas.
