KOEN
Rock Of Ages Light in the middle, with the lights within 20 km, in their listed colours.
Rock Of Ages Light — light characteristic, height, range
One white flash every 10 seconds
Count 10 seconds.Flash white, once.Begin again.
- Characteristic
- Fl W 10s
- Height
- 130 ft · 40 m
- Nominal range
- 12 mi = 19 km
- Structure
- White conical tower on cylindrical base.
- Position
- 47.8665°N, 89.3147°W · MI

Lights nearby
- West Isle Royale Weather Wave Buoy 2One white flash every 2.5 seconds · 5.6 km
- Windigo Dock LightContinuous quick red flashes · 13 km
- SPEAR Lighted Research Buoy 13Continuous quick yellow flashes · 21 km
- SPEAR Lighted Research Buoy 14Continuous quick yellow flashes · 21 km
- Grand Portage Bay Entrance LightOne white flash every 4 seconds · 26 km
- Hat Point Lighted Bell Buoy 1One green flash every 4 seconds · 26 km
- Jarvis Rock Light (C)One white flash every 4 seconds · 26 km
- Grand Portage Pier LightOne white flash every 2.5 seconds · 29 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