Airport
Chatham Seaplane Base
CYM
US · US-AK · SEAPLANE BASE
HIGHverified May 2026
Overview
Geography
- ARP coordinates
- 57.5149, -134.9460
- Elevation
- —
- Timezone
- America/Sitka
Operations
- Customs
- No
- Immigration
- No
- 24h operations
- No
- PPR required
- No
- Curfew
- No
- ARFF (ICAO)
- —
- Status
- OPERATIONAL
Identifiers
- IATACYM
- LOCAL05AA
- GPS_CODE05AA
Runways (1)
NW/SE3,048 m · WATER
Geometry
| Length | 3,048 m (10,000 ft) |
|---|---|
| Surface | WATER |
Runway ends
NW
SE