• What did you see? Henry Coe State Park is marked as kind: national_park
• What did you expect to see? Should be just park as it's state park.
• Screenshot?

There are lots of tags!

park:type = state_park
leisure = nature_reserve
boundary = national_park

• https://www.openstreetmap.org/relation/318202#map=11/37.1753/-121.4406