[GIS] Removing distorted edges of TIN surface

Question

I'm trying to remove the stretched edges of a TIN surface without having to draw a polygon around the features that I want clipped.

Does anyone know how to do this without free hand drawing?

I was thinking an edge detection method could work.

Here's an example:

Answer 1

I think you are looking for the Delineate TIN Data Area tool:

Redefines the data area, or interpolation zone, of a triangulated irregular network (TIN) based on its triangle edge length.