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Siskiyou County Airport
KSIY SIY (Montague, CA)
Class G: untowered

Elevation: 2651


RwySizeTypeCond.
17/357490x150AsphaltGood


Chart Supplement (pdf version)

SISKIYOU CO (SIY)(KSIY) 3 NE UTC–8(–7DT) N41º46.89´ W122º28.09´
2651 B NOTAM FILE SIY
RWY 17–35: H7490X150 (Asphalt) S–60, D–180, 2S–175, 2D–270 MIRL
RWY 17: Runway End Identifier Lights. PAPI(P2L)—GA 3.0º TCH 50´. Road.
RWY 35: Runway End Identifier Lights. PAPI(P2L)—GA 3.0º TCH 50´. Right Traffic.
SERVICE: FUEL JET A LIGHTING ACTIVATE MIRL Runway 17–35, PAPI Runway 17 and Runway 35, Runway End Identifier Lights Runway 17 and Runway 35—CTAF.

AIRPORT REMARKS: Attended Sunday–Friday 1600–0100Z‡. Migratory flocks of waterfowl in the vicinity of airport during spring and fall. Wildlife in the vicinity of airport. Farming activities and equipment in the vicinity of runways and taxiways. Sensitive Agriculture crops adjacent to runway/taxiway. Rotocraft should avoid operating in these areas. Be alert for glider operations May–Sept. US Forest Service fire operations May–September. Landing fee.

AIRPORT MANAGER: 530-842-8259
WEATHER DATA SOURCES: ASOS 121.125 (530) 459–0267.
COMMUNICATIONS: CTAF/UNICOM 123.0
ANTELOPE MTN RCO 122.4 (RANCHO MURIETA RADIO)
®SEATTLE CENTER APPROACH/DEPARTURE CONTROL 124.85 CLEARANCE DELIVERY PHONE: For clearance delivery contact Seattle ARTCC at 253-351-3694.
RADIO AIDS TO NAVIGATION: NOTAM FILE RIU. FORT JONES (VL) (DH) VORW/DME 116.25 N41º26.98´ W122º48.39´ FJS Chan. 109(Y) 018º 25.1 NM to field. 4900/19E. VOR unusable:
015º–073º beyond 40 NM
018º–025º beyond 22 NM below 14,000´
074º–117º beyond 33 NM
118º–127º beyond 40 NM
128º–146º beyond 33 NM
147º–292º beyond 11 NM
293º–310º beyond 40 NM
316º–326º beyond 40 NM below 10,000´
316º–326º beyond 61 NM
327º–331º beyond 40 NM
332º–342º beyond 40 NM below 11,500´
332º–342º beyond 67 NM
343º–002º beyond 40 NM DME unusable:
018º–025º beyond 22 NM below 14,000´
074º–117º beyond 33 NM
128º–146º beyond 33 NM
147º–292º beyond 11 NM
MONTAGUE NDB (MHW) 404 MOG N41º43.64´ W122º28.90´ 356º 3.3 NM to field. 2629/15E. NOTAM FILE SIY. NDB unmonitored. NDB unusable:
190º–200º beyond 10 NM



ApproachTypeCat B MinsPlate
NDB OR GPS-ACIRCLING3760-1½chart


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Database updated: 2026/03/19

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