The San Diego County Sheriff's Office has released the identity of a woman who died Saturday while hiking in the Anza-Borrego Park area.

Fifty-seven year old Rhonda Burt of El Centro collapsed and died while hiking near Mortero Palms in the Anza-Borrego area. Burt collapsed on the hike and was unresponsive despite efforts to revive her. San Diego authorities say she apparently died of heart disease.