47° 23′ 43″ N 121° 32′ 9″ W
/
1.636 ft
(499 m MSL)
navigation
20°
US-5748
Porter Flying Services Airport
39° 37′ 0″ N 121° 50′ 53″ W
/
135 ft
(41 m MSL)
navigation
162°
46° 11′ 57″ N 119° 7′ 12″ W
/
395 ft
(120 m MSL)
navigation
51°
navigation
60°
47° 5′ 29″ N 120° 35′ 23″ W
/
1.962 ft
(598 m MSL)
navigation
31°
40° 15′ 58″ N 120° 9′ 10″ W
/
4.012 ft
(1.223 m MSL)
navigation
143°
US-6025
Glenn Medical Center Heliport
39° 31′ 19″ N 122° 12′ 30″ W
/
136 ft
(41 m MSL)
navigation
166°
46° 7′ 39″ N 119° 0′ 51″ W
/
435 ft
(133 m MSL)
navigation
52°
46° 42′ 29″ N 119° 48′ 3″ W
/
840 ft
(256 m MSL)
navigation
41°
39° 30′ 59″ N 122° 13′ 4″ W
/
141 ft
(43 m MSL)
navigation
166°
navigation
12°
39° 23′ 20″ N 123° 20′ 21″ W
/
1.401 ft
(427 m MSL)
navigation
177°
navigation
58°
navigation
14°
navigation
50°
47° 30′ 52″ N 121° 49′ 40″ W
/
900 ft
(274 m MSL)
navigation
17°
47° 36′ 14″ N 122° 19′ 22″ W
/
322 ft
(98 m MSL)
navigation
12°
47° 36′ 21″ N 122° 20′ 1″ W
/
716 ft
(218 m MSL)
navigation
12°
47° 36′ 30″ N 122° 20′ 8″ W
/
670 ft
(204 m MSL)
navigation
12°
navigation
8°
navigation
13°
US-3146
Alamo Organic Orchards Airstrip
46° 44′ 35″ N 119° 47′ 1″ W
/
906 ft
(276 m MSL)
navigation
40°