The very oldest and largest live oak trees in Louisiana with girths of 30 feet or more are shown in this portfolio. Why is an oak with a 30-foot circumference significant? According to several Louisiana arborists I consulted, oaks of this size are probably between 300 and 500 years of age (add another 100 years or more for oaks with a girth greater than 35 feet). That means these live oaks were probably growing before Europeans settled this continent. You can read the stories of these ancient oaks on my blog: The 100 Oaks Project (https://100oaks.wordpress.com/) Seven Sisters Oak study 1, Mandeville, LAOle Glory Oak, Baton Rouge, LA - 28'-1Robbins Oak, Lafayette, LA - 28'-2Francois Sampson Oak, New Roads, LA - 28'-4Picnic Oak, Avery Island, LA - 23'-8Seven Sisters Oak, study 4, Mandeville, LAEdward Douglas White Oak, near Thibodaux, LARandall Oak, New Roads, LA – 35'-8Edna Szymoniak Live Oak – 35'-6Edna Szymoniak Oak, study 2La Belle Colline Oak, near Sunset, LA – 34'The Martin Tree, Gonzales, LA – 34' Dr. E.O. Powers Oak / Lorenzo Dow OakGovernor's Oak, Baton Rouge, LA – 33'-3Seven Brothers (Lastrapes) Oak, Washington, LA – 32'-3Boudreaux's Friendship Oak, Lafayette, LA – 31'-10May's Oak, Rosedale, LA – 30'-11Blanchet Oak, Lafayette, LA – 30'-7Grosse Tete Oak, Bayou Grosse Tete, LA – 30'-2Etienne de Bore' Oak, New Orleans, LA - 30'Rebekah Oak, Breaux Bridge, LA – 30'Hudson Oak, Prairieville, LA – 29'-9Grenier Oak, near Thibodaux, LA – 29'-9Josephine Oak, Oak Alley Plantation, Vacherie, LA – 29'-11Stonaker Oak, New Roads, LA – 29'-6St. John's Cathedral Oak, Lafayette, LA – 29'-6Dr. Duffle Oak, near Donaldsonville, LA - 26'-3Mike's Oak, near Franklin, LA - 29'Robert Earl Sr. Oak, River Ranch, Lafayette, LA - 28'-6Jefferson Island Oak, near New Iberia, LA - 28'-5