Forward progress stopped on fire burning near Holser Canyon in Ventura CountyA brush fire that broke out near Holser Canyon in unincorporated Ventura County prompted evacuations on Saturday afternoon. A brush fire that broke out near Holser Canyon in unincorporated Ventura County prompted evacuations on Saturday afternoon. A brush fire that broke out near Holser Canyon in unincorporated Ventura County prompted evacuations on Saturday afternoon. A brush fire that broke out near Holser Canyon in unincorporated Ventura County prompted evacuations on Saturday afternoon. A Heat Advisory also remains in effect for much of the rest of Ventura County, including many coastal communities.