TreeDimensional

I wanted to say "at the Ground". But that would be too easy. What percentage of the crown is lost? ANSI standards indicate that if more than 40% of the crown is lost, the tree should be removed. The second issue is the union of the two main leads. I can't tell for sure but IF there is included bark and it has split, you may want to consider cabling, or removal. The third thing that looks odd is the lack of root flair. The ground looks like it might be extremely compacted.

When doing a risk assessment on any tree the presence of a target is one of the most important things to consider. The species is formulated in as well, plus the size of the part that might fail.

From the pics posted there looks to be significant tearing down the stem. If the tree was left standing, is it going to be a viable tree, or once the wood has compatamentalized is it going to become more of a hazard?

In a book on evaluation of hazard trees, pinus species are mostly rated as a moderate risk tree, usual failures are branch unions. I guess your pics prove that. I would also have a good look at the rest of the tree to see if someone was there before you. Has the tree been improperly pruned in the past or maybe even liontailed. Sometimes people do more damage trying to do the right thing, all with good intentions, but improper pruning has ruined a lot of great trees.

We don't have a lot of pines here but through reading they seem to suffer heart rot, but who knows if heart rot is an issue in the desert?

The last point is that you live is the US, and there seems to be an increased trend of litigation for work previously done. I hate to say remove the tree without more info, but if it was an iffy call, I'd rather deal with a home owner, making rational decisions, than deal with an injured parties lawyer in a court-room.

Its your call, if you choose to let her stand, check out the internet or library on the subject of bark tracing. DDannyboy also makes a good point about the power lines, and limits of approach.

I hope this helps, but what do I know, I use a bucket truck more than I climb, so I guess I'm a hack.