Context: The expansive area northwest of the city limits is diverse, ranging from the rural communities of Catalina and parts of the town of Marana, the small suburb of Picture Rocks, the affluent town of Oro Valley in the western foothills of the Santa Catalina Mountains, and residential areas in the northeastern foothills of the Tucson Mountains. Continental Ranch (Marana), Dove Mountain (Marana), and Rancho Vistoso (Oro Valley) are all masterplanned communities located in the Northwest, where thousands of residents live.

Question: How many residents live in the master-planned communities?
Answer: thousands

Question: What mountains is Oro Valley next to?
Answer: Santa Catalina Mountains

Question: Which town is Rancho Vistoso located?
Answer: Oro Valley

Question: Which town would you find Dove Mountain and Continental Ranch?
Answer: Marana

Question: Where is Oro Valley?
Answer: in the western foothills of the Santa Catalina Mountains

Question: Where is the Continental Ranch planned community?
Answer: Marana

Question: Where is the Dove Mountain planned community?
Answer: Marana

Question: Where is the Rancho Vistoso planned community?
Answer: Oro Valley

Question: Which direction from Tucson is Picture Rocks?
Answer: northwest