On Sunday, February 2, 2020 at 5:26:56 PM UTC-5, Tango Eight wrote:
On Sunday, February 2, 2020 at 4:12:02 PM UTC-5, Darryl Ramm wrote:
Post the actual waypoint data here... it’s just ASCII text. Then we have a chance of seeing what is going on.

Here you go. I created this waypoint about 3 minutes ago. Use whatever tool you like to correlate lat/long/elevation. Actual elevation closer to 1220m....

"Brumley Mountain",,,3650.274N,08206.228W,1091.5m,1,,,,,,

T8

The elevation data built into the map that is within SeeYou is only approximate, as it is presumably based on a "grid elevation model" with limited resolution. The more varied (mountaneous) the local topography, the more inaccurate it would be, since those grid points are farther apart than the actual local slopes. I always enter waypoint elevations "manually", from other sources.