I want to know the answer to the following question:
In addition to the New Haven Harbor, what additional natural element is a prominent geographic feature of the area, flanking the northeast and northwest boundaries?
All the background I'm provided with is that "New Haven's best-known geographic features are its large deep harbor, and two reddish basalt trap rock ridges which rise to the northeast and northwest of the city core.". Is that enough to answer the question?
Answer: yes