Category:Harbor Defense of the Columbia

 (F) 46.20693, -123.96225, Fort Stevens (1) (1863-18??) (F) 46.2786, -124.05333, Fort Canby (1852-1947) (F) 46.25255, -123.92047, Fort Columbia (1896-1947) (B) 46.28427, -124.06569, Battery 247 (1944-1947) (B) 46.28074, -124.05436, Battery Guenther (1917-1942) (B) 46.2779, -124.05333, Battery Harvey Allen (1906-1945) (B) 46.27694, -124.04754, Battery O'Flyng (1906-1918) (B) 46.26837, -124.03838, Battery AMTB - Cape Disappointment (1946-1946) (B) 46.20712, -123.97188, Battery 245 (1944-1947) (B) 46.20718, -123.97072, Battery Mishler (1879-1941) (B) 46.20712, -123.96714, Battery Pratt (1902-1943) (B) 46.20716, -123.96822, Battery Lewis (1897-1920) (B) 46.20712, -123.96922, Battery Walker (1897-1920) (B) 46.19243, -123.97535, Battery Russell (1904-1944) (B) 46.2035, -123.96533, Battery Clark (1899-1942) (B) 46.20641, -123.95885, Battery Smur (1902-1920) (B) 46.20698, -123.963, Battery Freeman (1902-1920) (B) 46.22884, -124.01221, Battery AMTB 6 - Clatsop Spit (1943-1946) (H) 46.2072, -123.97042, HECP (B) 46.25169, -123.92124, Battery Murphy (1) (1900-1945) (B) 46.2528, -123.9207, Battery Ord (1898-1917) (B) 46.25153, -123.92054, Battery Crenshaw (1900-1920) (B) 46.25205, -123.9208, Battery 246 (1942-1945)

(R) 46.30038, -124.07568, North Head SCR-682 Radar Site (1943-1946) (R) 46.29999, -124.07242, North Head SCR-296A Radar Site No. 1 (1944-1946) (R) 46.27862, -124.05469, Fort Canby SCR-296A Radar Site No. 2 (1943-1946) (R) 46.1889, -123.97343, Fort Stevens SCR-296A Radar Site No. 3 (1944-1946) (R) 46.2746, -124.04273, Fort Canby SCR-547 Radar Site