Crest Line-California Crestline News Lake Gregory Dam Project Completed In Crestline By Press Release - April 27, 2019 Lake Gregory Dam Completion Plan Approved By Press Release - December 1, 2017 Outreach to Homeless Individuals and Families in Crestline By Press Release - October 4, 2017 CRESTLINE: Lake Gregory’s Independence Day Boat Parade By Press Release - June 28, 2012 Crestline Crestline is a census-designated place in the San Bernardino Mountains of San Bernardino County, California, USA. Employment Jobs near Crest Line Government Crestline, Ca: About page Organizations Crestline, Ca: Chamber of Commerce Crestline Education Northwest Preparatory School Read All Crestline News Crestline California