Editing surface boundary

[cneely]

I'm trying to edit the boundary on a surface but it's not allowing any edits. It also isnt showing up in the surface definition so I can't just delete and re-do. 

[Todd_Rogers]

That's not where the surface boundary resides. If you click on the Surface, right-click and choose Edit Surface Style, click on the Display tab. Turn on Boundary and TIN Lines.

[cneely]

I have the boundary turned on. I'm wanting to edit it. There are no grips so I figured I'd delete it and re-add the correct boundary. It isnt listed in the surface definition so I'm not able to delete it. 

[dbinkney]

Perhaps try this

Extract it from the surface.  Turn it on via the style, make sure its on a viable layer, and then select the surface > Surface Tools > Extract From Surface > Extract Objects.

Do what you want then add the revised boundary to the surface via the definition. 

[cwr-pae]

I think what @Todd_Rogers and @dbinkney are pointing out is that the surface has an automatic boundary added when the surface is created that isn't editable, this boundary is just the physical limits of the new surface.  When you add a NEW boundary you can then edit or delete it. The new boundary can be extracted from the original (per @dbinkney) or a poly or feature line you have drawn manually.