You are genius! 
Haha, no I am not, just make sure you are sufficiently high! Lessons learned over a long FS career 
Yeah - that will probably work for sim flying. In the real world - you’d either have to pick a more inconvenient route that zig-zags on Victor or Jet airways and fly at the MEA (Minimum Enroute Altitude) to ensure signal reception throughout the route. Because you wouldn’t want to WAG your position if you are flying IMC at an altitude below the peaks that are in the vicinity. Normally you could use an IFR certified GPS to just fly RNAV between the gaps as well. If you are under ATC control and you are at an altitude that does not have terrain or obstacle issues, they will sometimes give you a vector to fly “until receiving” the Navaid (ie: N205CM fly heading 270 until receiving Medicine Bow, then direct)…
And a good summary of those symbols on the charts (MSA, MEA, MOCA, MRA, etc…) can be found here:
https://www.ivao.aero/training/documentation/books/SPP_APC_Minimum_flight_altitude.pdf
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Thanks for the detailed answer. That are the exact details (missing pieces) I am looking for as I plan to do the next leg to Antarctica in the Learjet 
I will try to follow your instructions using the Jet airways and using the GPS for the gaps (and maybe I will shoot some RNAV (GNSS) approach if I will figure it out soon enough 
)
Is there anything else I have to know? thx
Well, there are some interesting things that happen to avionics as you get close to the poles due to the massive magnetic variation. In polar regions, some aircraft switch to a grid reference system. A GPS/GLONASS should be impervious to all of that…and will definitely point you in the right direction, but traditional navigation can get messy near the poles. As well, neither FSX or X-Plane really model a Earth sphere…so you’ll notice maps get extremely distorted near the pole. As well, the cloud graphics depend on their size relative to the size calculated between lines of longitude (I think)…so as you arrive closer to the pole, the clouds squish and distort (in FSX). I don’t know if P3D addressed this or not. Maybe we can convince @near_blind to make a supersonic dash over the pole and show us the screenshot!
Was looking to see how many more miles that will cost me.
Google gets a gold star for trying.
TIL - My wife works for Google Maps…
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