Eclipse, , has died, according to her owner.
The black labrador-bull mastiff mix after she learned to take the bus to the dog park even without her owner.
She died in her sleep on Friday morning, on the account run by her owner, Jeff Young. A previous post told fans that Eclipse had been diagnosed with cancerous tumours. She was 10 years old, according to the Facebook account.
King County Metro, which provides public transportation in Seattle, on Twitter on Friday.
"Eclipse was a super sweet, world-famous, bus riding dog and true Seattle icon," said the official metro Twitter account. "You brought joy and happiness to everyone and showed us all that good dogs belong on the bus."
