KOEN
Grand Haven South Pierhead Entrance Light in the middle, with the lights within 20 km, in their listed colours.
Grand Haven South Pierhead Entrance Light — light characteristic, height, range
One red flash every 10 seconds
Count 10 seconds.Flash red, once.Begin again.
- Characteristic
- Fl R 10s
- Height
- 42 ft · 13 m
- Nominal range
- 15 mi = 24 km
- Structure
- Red fog signal building.
- Remarks
- Fog Signal operates by keying the microphone five times on VHF-FM CH 83A. HORN: 2 blasts ev 30s (2s bl-2s si-2s bl-24s si).
- Position
- 43.0569°N, 86.2560°W · MI

Lights nearby
- Grand Haven North Pierhead Light 1One green flash every 4 seconds · 139 m
- Grand Haven South Pierhead Inner LightRed, dark once every 4 seconds · 179 m
- Grand River Lighted Buoy 3One green flash every 2.5 seconds · 1.6 km
- Grand River Lighted Buoy 3AOne green flash every 4 seconds · 1.7 km
- Grand River Lighted Buoy 4One red flash every 4 seconds · 2.3 km
- Grand River Lighted Buoy 8One red flash every 2.5 seconds · 2.9 km
- Grand River Lighted Buoy 14One red flash every 2.5 seconds · 3.8 km
- Grand River Lighted Buoy 14AOne red flash every 6 seconds · 4.0 km
Not for navigation. Use official NOAA charts and USCG Local Notices to Mariners.
Real periods; the phase is reconstructed from a fixed clock (real lights don't keep time with each other).
Sources: U.S. Coast Guard Light List (opens in a new tab) · Checked