Is there any way to determine what is being loaded at a moment-in-time within Oblivion so as to track down what may be specifically causing a CTD?

A number of installs ago on a different computer, I could not get near Crowhaven to advance the 'Origin of the Gray Prince' quest. (I had to COC just inside the entrance in order to proceed). I could never figure out what 'bad item' was causing this particular CTD.

My current game, I cannot get near the Elven Gardens from the IC Market without a CTD. I can exit Rindir's (from a loaded game from inside) and turn right towards the Arena--no problem. If I turn left towards Palonirya's or the Elven Garden door >>> CTD. If I even look that way >>> CTD.

I am not looking for help with a specific mod, as the mod lists and systems and even OS are different. I am just trying to find out if there is a way to see what the game is attempting to load at the time of a crash. The game seems to be very stable when outside of City. (I will say I have not ever run a city improvement mod of any kind, so the architecture would be Vanilla)