posted on Feb, 4 2015 @ 09:34 PM
What happened is both the Tonopah Test Range and Groom Lake use KTNX for their location. That is why the dotted line starts at the TTR. That is,
flightaware thinks the route starts at the TTR. However, the tracking shows the actual route.
This is probably an error with the FAA "filter" rather than what the pilot files.
Groom flights generally are at 14kft or 15kft, depending on direction.