Good catch - I was wondering why it stayed up and figured there might be a delay. :)
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Published using OSMCha: https://osmcha.org/changesets/123451505

I just emailed the lead scientists in charge of the project at JPL, but none of the email addresses on https://www2.jpl.nasa.gov/srtm/contact.htm are functional.

Thanks for looking into it!

I've never come into a situation where topo was that far off, and there's plenty of tighter canyons in the area where the walls have kept their integrity. I wonder what happened with their satellite there?

Here's some photos of the area:

https://imgur.com/a/Ea2oPHN/

https://i.imgur.com/FaBpAcw.jpg

https://i.imgur.com/vcJwcJ7.jpg

(context @ https://www.reddit.com/r/GaiaGPS/comments/mdgvec/new_look_for_gaia_topo_layer/gsp7f6p/?utm_source=reddit&utm_medium=web2x&context=3)

The box trail needs more work, technically it should start from the trailhead and the hidden cache be a subtrail from it, and it doesn't curve in to meet with the yellow rock but keeps on going up to near the rim of hackberry and beyond (as far as I got on another day).

This prompted a reddit thread by me which was a useful learning process:

https://www.reddit.com/r/openstreetmap/comments/mf3ih7/visual_differentiation_between_maintained_and/

They definitely don't exist, and they'd be more useful if they were from an actual cleaned up GPX route, but they're just made from someone's computer with a few nodes (either eyeballed or recorded) to the point where they aren't really useful except in a vague sense. I've upped their difficulty and added in trail visibility to help indicate the red top ones are climbers approach routes (barely used at all), could rename them as well I guess.

The yellow rock canyon via box trail might be some historical use trail, but I couldn't find any trace of it aside from two cairns and the terrain is super simple.

The larger issue with the counter lines being wrong (no calf high river climbs 100ft onto a saddle, the cliffs don't drop down in the middle) is they get fed programatically into slope angle indicators and other mapping application layers as well. Trails come and go and one can expect some flakiness, but terrain should be 100% reliable even if it is lacking resolution in some areas (at least the reduced resolution should be as accurate as it can be).

Is there a way to file the impossible terrain detail with opentopo?