Matinicus Rock Light — light characteristic, height, range

One white flash every 10 seconds

Count 10 seconds.Flash white, once.Begin again.

Characteristic: Fl W 10s
Height: 90 ft · 27 m
Nominal range: 20 nmi = 37 km
Structure: Cylindrical gray granite tower.
Remarks: Emergency light of reduced intensity when main light is extinguished. HORN: 1 blast ev 15s (2s bl). MRASS-Fog signal is radio activated, during times of reduced visibility, turn marine VHF-FM radio to channel 83A/157.175Mhz. Key microphone 5 times consecutively, to activate fog signal for 60 minutes.
Position: 43.7835°N, 68.8550°W · ME

Matinicus Rock Light in the middle, with the lights within 20 km, in their listed colours.

Lights nearby

Criehaven Breakwater Light 8One red flash every 6 seconds · 6.4 km
Wooden Ball Island Lighted Bell Buoy 2WBOne red flash every 4 seconds · 6.6 km
Matinicus Harbor Light 2One red flash every 4 seconds · 9.3 km
Matinicus Island Lighted Bell Buoy 9MIOne green flash every 4 seconds · 11 km
Zephyr Rock Lighted Buoy 5One green flash every 4 seconds · 13 km
Penobscot Bay Lighted Buoy WPMorse A (·−) in white · 17 km
Three Fathom Ledge Isolated Danger Lighted Buoy DTF2 white flashes every 5 seconds · 18 km
Old Horse Ledge Lighted Bell Buoy 2AOne red flash every 2.5 seconds · 24 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).