There are 106 boxes of Hodgon's Collection in the British Library in London, among which Box44 contains and interesting folio no. 12, mentioning names and points where each milestone stands and the distance from Kathmandu Hanumandhoka. These stones extend well into the west of the country.
Distances in Nepal are all measured from an exact point in Kathmandu in front of Kasthamandpapa, a vernacular shrine named Bhutisah.