Airport information
- FAA LID
- T42
- Coordinates
- 40.2113, -123.2980
- Elevation
- 2,781 ft MSL
- Magnetic variation
- 17E
- Sectional chart
- KLAMATH FALLS
- Airport use
- Public
- Control tower
- No
- ARTCC
- OAKLAND (ZOA)
- Flight service (FSS)
- RANCHO MURIETA
- NOTAM facility
- RIU
- Attendance
- UNATNDD
- Segmented circle
- No
- Wind indicator
- yes
- Activated
- 2002/01
- Distance from city
- 7 S
Weather
METAR observed
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TAF forecast
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Sun & FAA night 2026-06-21
| Event | Local (PDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 05:11 AM | 12:11Z |
| Sunrise | 05:44 AM | 12:44Z |
| Sunset | 08:46 PM | 03:46Z |
| Evening civil twilight Loggable night begins | 09:19 PM | 04:19Z |
Plan a flight from T42
Night operations
- Pilot-controlled lighting
- Usually keyed on CTAF 122.8 — confirm the click sequence in the Chart Supplement ↗
FAA night windows (civil twilight, loggable night §1.1, currency §61.57) are in the live weather panel above.
Traffic pattern
- Landing
- Rwy 13 · 126°
- Pattern
- left (turns left)
- TPA
- 3,800 ft MSL (≈1,000 AGL)
- CTAF
- 122.8
Enter the left downwind for Rwy 13 at 3,800 ft MSL (≈1,000 AGL) on a 45°. TPA estimated at 1,000 ft AGL (not charted for this field).
Runway 13/31
3,500 ft × 50 ft · Asphalt (Fair)- Heading
- 126° mag · 143° true
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Berm, 6 ft, 200 ft from threshold, 125 ft L of centerline
- Heading
- 306° mag · 323° true
- Markings
- basic
- Traffic pattern
- Left
- Approach obstacle
- Hill, 400 ft, 2,400 ft from threshold, 400 ft R of centerline — 5:1 slope to clear · penetrates the 20:1 visual approach surface
| Runway | Length | Your margin |
|---|---|---|
| 13/31 | 3,500 ft |
Communication frequencies
| Service | Frequency | Notes |
|---|---|---|
| UNIC | 122.8 | CTAF/UNICOM |
Chart Supplement FAA A/FD
Open PDF ↗Preview Chart Supplement
VFR sectional
Services
- Bottled oxygen
- NONE
- Bulk oxygen
- NONE
- Airframe service
- NONE
- Powerplant service
- NONE
- Parking
- tiedowns
Ownership & management
Remarks FAA
- AIRPORT CLSD NIGHTS.
- INTERMITTENTLY CLOSED WINTERS DUE TO SNOW, CTC COUNTY TRANSPORTATION OFFICE FOR INFO 530-623-1365.
- HIGH TERRAIN ALL QUADRANTS.
- FOR CD CTC OAKLAND ARTCC AT 510-745-3380.
- DIRECTOR OF TRANSPORTATION; OFFICE IN WEAVERVILLE.
- TRINITY COUNTY TRANSPORTATION SERVICES OFFICE IN WEAVERVILLE
- 4' FENCE 75' LEFT & 100' RIGHT OF CNTRLN.
Nearby airports
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 T42 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.
About T42
Ruth Airport (T42) is an airport in Mad River, CA, at 2,781 ft MSL. It has 1 runway, the longest 3,500 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for T42, refreshed from the Aviation Weather Center and FAA NASR.
Does T42 have a control tower?
No. Ruth Airport is a non-towered (pilot-controlled) airport; use the published CTAF/UNICOM on the Comms & NavAids tab.
What is the longest runway at T42?
Ruth Airport has 1 runway; the longest is 3,500 ft. See the Runways tab for headings, surface, and lighting.
Where is T42?
Ruth Airport is in Mad River, CA, at an elevation of 2,781 ft MSL. Coordinates: 40.2113, -123.2980.
Fly out of T42 often?
Save T42 as your home base in the SkyReady app for a one-tap Go/No-Go readiness brief, weather alerts, and automatic FAA currency — free to log.