This is what it returns for me with - London Euston to Inverness via Crewe, Carlisle and Edinburgh Waverley.
Distance: 575mi 24ch - The requested route: London Euston, Camden Junction, Kilburn Up & Down Goods Loop, Queens Park (London) (WCML), Willesden West London Junction, Willesden North Junction, Wembley Central, North Wembley Junction, Harrow & Wealdstone, Bushey, Watford South Junction, Watford Junction, Watford North Junction, Kings Langley, Apsley, Hemel Hempstead South Junction, Hemel Hempstead, Berkhamsted, Tring, Tring North Junction, Cheddington, Ledburn Junction, Leighton Buzzard, Bletchley, Denbigh Hall South Junction, Denbigh Hall North Junction, Milton Keynes Central, Wolverton, Hanslope Junction, Hanslope Roade, Weedon Blisworth Ground Frame, Weedon, Weedon Wilton Marina, Rugby South Junction, Rugby, Rugby Trent Valley Junction, Brinklow, Attleborough Shilton, Attleborough Junction, Nuneaton South Junction, Nuneaton, Atherstone, Polesworth, Tamworth (Low Level), Lichfield Trent Valley Low Level, Armitage Junction, Rugeley Trent Valley, Colwich, Whitehouse Junction, Stafford Trent Valley Junction, Stafford, Norton Bridge, Madeley Whitmore, Madeley (Staffs), Betley Road Signal Box, Crewe Basford Hall Junction, Crewe South Junction, Crewe Crewe, Crewe North Junction, Crewe Coal Yard, Winsford, Hartford, Hartford Junction, Acton Bridge, Weaver Junction, Acton Grange Junction, Warrington Bank Quay, Winwick Junction, Golborne Junction, Bamfurlong Junction, Springs Branch Junction, Wigan South Junction, Wigan Station Junction, Wigan North Western, Wigan Boars Head Ground Frame, Blainscough, Balshaw Lane, Euxton Balshaw Lane, Euxton Junction, Leyland, Farington Junction, Farington Curve Junction, Preston Skew Bridge, Preston South Junction, Preston, Preston Fylde Junction, Barton & Broughton Passenger Loop, Garstang & Catteral, Bay Horse, Oubeck Goods Loop, Lancaster, Morecambe South Junction, Hest Bank, Carnforth North Junction, Milnthorpe, Oxenholme Lake District, Lambrigg, Grayrigg, Lowgill, Tebay, Shap Summit, Hardendale Quarry, Shap Harrisons Sidings, Clifton & Lowther, Penrith South Junction, Penrith, Plumpton Long Ashes, Southwaite, Carlisle Upperby Junction, Carlisle Carlisle, Caldew Junction, Kingmoor Junction, Floriston, Mossband, Gretna Junction, Quintinshill, Kirtlebridge Ground Frame, Ecclefechan, Lockerbie, Nethercleugh, Wamphray Ground Frame, Beattock, Elvanfoot, Abington, Symington Ground Frame, Carstairs South Junction, Carstairs East Junction, Auchengray, Cobbinshaw, Torphin, Midcalder Junction, Kirknewton, Kaimes Ground Frame, Curriehill, Wester Hailes, Kingsknowe, Slateford, Slateford Junction, Haymarket East Junction, Haymarket, Edinburgh Waverley Edinburgh Waverley, Haymarket, Haymarket East Junction, Haymarket Central Junction, Haymarket West Junction, South Gyle, Dalmeny, North Queensferry, Inverkeithing, Inverkeithing East Junction, Dalgety Bay, Aberdour, Burntisland, Kinghorn, Kirkcaldy, Thornton South Junction, Thornton North Junction, Markinch, Ladybank, Hilton Junction, Perth, Stanley, Dunkeld & Birnam, Pitlochry, Blair Atholl, Dalnacardoch, Dalwhinnie, Newtonmore, Kingussie, Kincraig, Aviemore, Carrbridge, Slochd, Tomatin, Moy, Culloden, Welsh's Bridge Jn (Inverness), Inverness.
) so I didnt know about that