Mariposa County Sheriff's Office Reports Landline Phones Are Currently Not Working In The Greeley Hill Area Details Last Updated: Thursday, 10 October 2019 10:13 Published: Thursday, 10 October 2019 10:13 View Comments October 10, 2019 - The Mariposa County Sheriff's Office reports landline phones are currently not working in the Greeley Hill area.For Emergency Service please dial 911 from your cell phone if you have cell service or go to the Sheriff's Sub Station located at 10549 Fiske Rd. The Sheriff's Office has also increased patrols in the area. Source: Mariposa County Sheriff's Office View the discussion thread. back to top