Greeley Hill Elementary School in Mariposa County Announces Community Work Day on Friday, July 17, 2015 Details Last Updated: Thursday, 16 July 2015 06:04 Published: Thursday, 16 July 2015 06:04 View Comments July 15, 2015 - In order to prepare the Greeley Hill school site in Mariposa County for reopening, a community work day has been planned for Friday, July 17, from 8:30 AM to 3:30 PM. View the discussion thread. back to top