A GPX file for the 2019 Long (100-mile) route is now available under this button:
Note: hhh2018tich.gpx remains correct for 2019
A Strava link, courtesy of an HHH rider is here:
An inter-active map of the Long route is below.
Note: sections of the route may be revised right up to the day of the event due to changes in road conditions/permissions. The latest version is always to be found here.