Visible on this 18th century map and at the location of modern-day Smithfield Street, at the western end of Smithfield Market.
The overlays that highlight 17th century London features are approximate and derived from Wenceslaus Hollar’s maps:
Open location in Google Maps: 51.517943, -0.103415
Cow Lane, West Smithfield (now named King Street), was famous for its coachmakers.
This text comes from a footnote on a diary entry in the 1893 edition edited by Henry B. Wheatley.
Cow Lane arcs WSW off West Smithfield on the Rocque map
Chart showing the number of references in each month of the diary’s entries.