Cottonwood Lake Seaplane Base
3H3 · Wasilla, AK · Non-towered · Open on the map
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Weather
METAR observed
TAF forecast
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Sun & FAA night2026-09-22 · night begins 08:41 PM
| Event | Local (AKDT) | UTC |
|---|---|---|
| Morning civil twilight Loggable night ends | 06:57 AM | 14:57Z |
| Sunrise | 07:41 AM | 15:41Z |
| Sunset | 07:57 PM | 03:57Z |
| Evening civil twilight Loggable night begins | 08:41 PM | 04:41Z |
Plan a flight from 3H3
Winds aloft NOAA forecast · 3,000 to 53,000 ft
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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
| Runway | Length | Your margin |
|---|---|---|
| 06W/24W | 4,000 ft |
Prefer one flat page? Full runway details for 3H3 → · New to pattern entries? The 45° entry, explained → · Teaching here? Print the 3H3 kneeboard →
Comms & NavAids
Communication frequencies
Taxi & takeoff
Source: FAA NASR (current 28-day cycle).
Nearby navigation aids
BGQ 112.50 · EDF 113.40 · TED 113.15
| NavAid | Type | Freq · ch | Range | Radial / Dist magnetic |
|---|---|---|---|---|
| BGQ · Big Lake | VORTAC | 112.50 · 72X | High | r066° / 18.7 NM |
| EDF · Elmendorf | TACAN | 113.40 · 81X | — | r017° / 24.3 NM |
| TED · Anchorage | VOR/DME | 113.15 · 78Y | High | r017° / 31.8 NM |
Prefer one flat list? All 3H3 frequencies →
Charts & procedures
Airport info
Airport information
- FAA LID
- 3H3
- Coordinates
- 61.5976, -149.3164
- Elevation
- 300 ft MSL
- Magnetic variation
- 23E
- Sectional chart
- ANCHORAGE
- Airport use
- Public
- Control tower
- No
- ARTCC
- ANCHORAGE (ZAN)
- Flight service (FSS)
- KENAI · 121.3, 121.5, 122.65 · 1-800-WX-BRIEF
- NOTAM facility
- ENA
- Attendance
- UNATNDD
- Segmented circle
- No
- Airport phone
- 907-283-7211
- Activated
- 2002/06
- Distance from city
- 3 E
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 under Sun & FAA night in the Weather section.
Ownership & management 2 contacts
Remarks FAA · 5 notes
General
- TREES ALL SIDES OF LNDG AREA; 50 FT ON WATERWAY.
- RCMD VISUAL INSP BFR LNDG. LNDG AREA NOT MNTND.
- CTN: BOATS & SWIMMING INVOF.
- PUB ACES N SHORE. BEACHING AREA ONLY; NO DOCK; RMNDR PVT/NON COML.
- TSNT SVC NA.
Nearby airports
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Also nearby: 23AK Yuknis (private) (0 NM) · AK54 Stro's (private) (0 NM) · 16AK Gattis Strip (private) (1 NM) · AK65 Green's Strip (private) (1 NM) · 0AK1 Anderson Lake (private) (1 NM) · 3AK6 B & B Boys Ranch (private) (1 NM)
About 3H3
Cottonwood Lake (3H3) is a seaplane base in Wasilla, AK, at 300 ft MSL. It has 1 runway, the longest 4,000 ft, with no control tower (pilot-controlled). This page shows live METAR/TAF weather, runway crosswinds, frequencies, navaids, and FAA charts for 3H3, refreshed from the Aviation Weather Center and FAA NASR.
Does 3H3 have a control tower?
No. Cottonwood Lake is a non-towered (pilot-controlled) seaplane base; use the published CTAF/UNICOM in the Comms & NavAids section.
What is the longest runway at 3H3?
Cottonwood Lake has 1 runway; the longest is 4,000 ft. See the Runways section for headings, surface, and lighting.
Where is 3H3?
Cottonwood Lake is in Wasilla, AK, at an elevation of 300 ft MSL. Coordinates: 61.5976, -149.3164.
More about 3H3
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 3H3 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.