Illinois Valley
3S4 · Cave Junction, OR · Non-towered · Print kneeboard · Open on the map
Nearby now
Loading…
Weather
METAR observed
TAF forecast
Loading forecast…
Sun & FAA night2026-09-21 · night begins 07:42 PM
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:33 AM | 13:33Z |
| Sunrise | 07:01 AM | 14:01Z |
| Sunset | 07:14 PM | 02:14Z |
| Evening civil twilight Loggable night begins | 07:42 PM | 02:42Z |
Plan a flight from 3S4
Winds aloft NOAA forecast · 3,000 to 53,000 ft
Loading winds aloft…
Full reports: nearest reporting station
Advisories
NOTAMs · Loading NOTAMs…
Pilot reports · Loading PIREPs…
Airspace hazards · Checking SIGMETs and G-AIRMETs…
Temporary flight restrictions · Checking for TFRs…
Runways
RWY 18LEFT traffic
- Heading
- 179° mag · 197° true
- Dimensions
- 4,807 × 60 ft
- TPA
- 2,400 ft MSL (≈1,000 AGL) · standard
- Surface
- Asphalt
- Lights
- 2-light PAPI (left) (4°)
- Displaced thr
- 125 ft
- CTAF
- 122.9
Enter the left downwind (heading 359°) on the 45° at 2,400 ft MSL (≈1,000 AGL).
More details — RWY 18
- Threshold elev
- 1,353 ft
- Markings
- basic
- Approach obstacle
- Road, 15 ft, 260 ft from threshold, 170 ft B of centerline — 4:1 slope to clear · penetrates the 20:1 visual approach surface
- Threshold crossing height
- 57 ft
- TDZ elevation
- 1,376 ft
- Declared TORA/TODA/ASDA/LDA
- 4,807 / 4,807 / 4,807 / 4,682 ft
- End lights
- REIL
Pattern side + displaced threshold: FAA NASR · TPA standard 1,000 ft AGL (not charted) · layout: FAA runway-end coordinates
| Runway | Length | Your margin |
|---|---|---|
| 18/36 | 4,807 ft |
Prefer one flat page? Full runway details for 3S4 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 3S4 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
CEC 109.00
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| CEC · Crescent City | VORTAC | 109.00 · 27X | Low | r038° / 31.6 NM |
Prefer one flat list? All 3S4 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- 3S4
- Coordinates
- 42.1036, -123.6824
- Elevation
- 1,394 ft MSL
- Magnetic variation
- 18E
- Sectional chart
- KLAMATH FALLS
- Airport use
- Public
- Control tower
- No
- ARTCC
- SEATTLE (ZSE)
- Flight service (FSS)
- MC MINNVILLE · 1-800-WX-BRIEF
- NOTAM facility
- MMV
- Attendance
- M-F 0800-1700
- Beacon
- white-green (SS-SR)
- Segmented circle
- Yes
- Wind indicator
- lighted
- Activated
- 1945/09
- Distance from city
- 4 SW
Night operations
- Airport lighting
- SEE RMK
- Rotating beacon
- white-green · SS-SR
- Pilot-controlled lighting
- AUTOMATED UNICOM. ADZY ALSO AVBL BY CALLING 617-262-3825.; ACTVT REIL 18 & 36; MIRL RWY 18/36 - CTAF. on 122.9 — Chart Supplement ↗
Runway lighting aids — 18: 2-light PAPI (left) · 36: 2-light PAPI (left).
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are under Sun & FAA night in the Weather section.
Services fuel · repairs · oxygen · attendance
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
- Other services
- Instruction
Ownership & management 2 contacts
Remarks FAA · 9 notes
General
- (E94) USFS WX STN.
- RY 36 DESIGNATED CALM WIND RY.
- FREQUENT ULTRA-LIGHT ACTIVITY.
- RWY HAS BASIC MARKINGS WITH SIDE STRIPES
- FOR CD CTC SEATTLE ARTCC AT 253-351-3694.
- 4 FT BRUSH IN PRI SFC AREA.
Lighting
- ACTVT REIL 18 & 36; MIRL RWY 18/36 - CTAF.
- MIRL SET 1 FT OFF RWY EDGE
Obstructions
- RWY 18 14:1 BASED ON DTHR. RWY 18 15 FT ROAD AT 330 FT ON CL 22:1 BASED ON DTHR
Nearby airports
Loading nearby conditions…
Also nearby: 84OR B Bar Ranch (private) (10 NM) · 5OR0 Backachers Ranch (private) (13 NM) · 6OR6 Wonder (private) (18 NM) · 0O9 Ward Field (21 NM) · 36S Happy Camp (23 NM)
About 3S4
Illinois Valley (3S4) is an airport in Cave Junction, OR, at 1,394 ft MSL. It has 1 runway, the longest 4,807 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3S4, refreshed from the Aviation Weather Center and FAA NASR.
Does 3S4 have a control tower?
No. Illinois Valley is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 3S4?
Illinois Valley has 1 runway; the longest is 4,807 ft. See the Runways section for headings, surface, and lighting.
Where is 3S4?
Illinois Valley is in Cave Junction, OR, at an elevation of 1,394 ft MSL. Coordinates: 42.1036, -123.6824.
More about 3S4
Weather is live from the Aviation Weather Center; airport facility data is from the FAA NASR (28-day cycle). For planning and education only; always verify against official sources. Open 3S4 in a full tool: METAR/TAF decoder, crosswind calculator, sun & night times, or the density altitude calculator. Planning from here? Find the nearest airport with fuel or an approach, or check whether an IFR alternate is required.
Something here wrong or out of date? Report a data problem.