Hi Leslie,
I'm sorry to say that your topic had been flagged as spam, which is why I hadn't seen it, and no one answered until now.
Do you know which file format is being used?
I just imported your route to Garmin Connect, as FIT with all 471 points and with only 200 points (for devices with a limit).
Garmin Connect shows 160.90 km in both cases.
Kind regards,
Julien
Several people have downloaded my route (100.06 on plot a route) and are reporting that the mileage is only 71.6 when downloaded to their device. Is this an issue with my route, their device, something else? 2 reported that it was a Garmint they are trying to upload to. Others have had no issues.
https://www.plotaroute.com/route/3036636?units=km