Lower Granite Dam Heliport
WN43 · Colfax, Washington · Garfield County · map
Lower Granite Dam Heliport is a private heliport owned by the U.S. Army Corps of Engineers, 14 miles south of Colfax, Washington, 652 feet above sea level. Its landing pad, H1, is 28 by 28 feet of asphalt.
Private use: permission from the owner is required before landing here.
The airport
- Codes
- FAA WN43
- Kind
- Heliport · private use, permission required · publicly owned
- Owner
- U.S. Army Corps of Engineers
- Elevation
- 652 feet above sea level
- Control tower
- No control tower
- Attended
- Monday to Friday, 7:30 am to 4:00 pm
- On the chart
- Seattle sectional
- Magnetic variation
- 19E
- In the FAA's files since
- June 1984
Landing pad
For understanding the field, not for navigation.
| Pad | Length × width | Surface | Lights |
|---|---|---|---|
| H1 | 28 × 28 ft | Asphalt, good |
Aircraft registered in Colfax from the FAA register
29 aircraft are registered to owners in Colfax, Washington: 25 piston singles, 3 turboprops, 1 piston twin. Not every one of them is based at this heliport; the based-aircraft count above is the FAA's figure for this heliport alone.
Companies and organisations in town with two or more aircraft:
Individuals are counted, never named. All aircraft registered in Washington.
Accidents and incidents at or near this heliport NTSB records
No NTSB accident or incident records name this heliport.
Nearby within 30 nautical miles
The FAA's remarks as written in the airport file
- 800' terrain 1300' south, 500' power line 2600' southeast.
Facts from the FAA's airport file effective October 1, 2026, written out in plain English; weather from the National Weather Service's aviation weather service; registered aircraft from the FAA register as of October 5, 2026; accidents from the NTSB's public database. Owners are shown only when they are an organisation; no person is named. Check the official sources before a flight: this page is for understanding an airport, not for planning one.