Answer: Considering it’s a Juliet flashback episode, I’m guessing Portland holds some significance for her.
Part of “Old Info And News”
November 2, 2006
Elizabeth Mitchell, who plays Juliet, got to know him off the set. “We got along really well,” she says. “He’s about to direct his first movie about his life, which is an incredible story. He’ll be missed.”
Source: USA Today
Elizabeth Mitchell - Interview - Lost - Old Info And News