The rink
A rink on a museum’s lawn
Pixar Post says the filmmakers set Riley’s hockey rink on the exact spot where the Walt Disney Family Museum stands in San Francisco.
D23’s interview with Pete Docter describes Riley’s family moving from their home in Minnesota to San Francisco.
Wikipedia says the idea of making Riley an ice-hockey player was tied to the sport’s popularity in Minnesota. Wikipedia says Pete Docter was born in Bloomington, Minnesota, and grew up there.
The rink belongs to the film. The museum is real and open to visit.
Sources