Welcome to Big Torch Key, Harbor Channel, FL

Big Torch Key is located in Monroe County, FL in the lower Florida Keys. It is to the north of Middle Torch Key (connected by a causeway) and Little Torch Key. It is the largest of the Torch Keys, but it is the only one not connected to surrounding keys by U.S. 1.

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Boating Resources for Big Torch Key, Harbor Channel, FL

Important Contacts

Harbormaster in Big Torch Key, Harbor Channel, FL

Local Coast Guard Station

Charts, Navigation, & Guides

Online Nautical Chart for Big Torch Key, Harbor Channel, FL

Pilot Guide Info for Big Torch Key, Harbor Channel, FL

Important Locations & Services

Local Marinas

Weather Conditions & Forecasts

Check Tides in Big Torch Key, Harbor Channel, FL

Marine Weather

Print a Tide Chart for Big Torch Key, Harbor Channel, FL

Other Resources

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Coastal News Updates See All

During the 2025 Deep-sea Habitats of the Cook Islands expedition on Exploration Vessel Nautilus the team surveyed various seascapes to better understand seabed environments, and natural and mineral resources in the region. In this image, polymetallic nodules rest on sediment accumulated in a depression between rounded pillows and extended lobate lava flows, which are evidence of ancient volcanoes. (Image credit: Courtesy of Ocean Exploration Trust)

NOAA Scientists and Partners to Map Deep Waters, Seabed in the Cook Islands

6/6/2026

By noaa.gov, noaa.gov. This summer, NOAA Ocean Exploration will conduct an expedition on NOAA Ship Okeanos Explorer to map, explore and characterize deep waters off the coast of the Cook Islands. The effort is in partnership with the Cook Islands Seabed Minerals Authority. Using remotely operated vehicles (ROVs), mapping technologies and onsite… SEE MORE

Image Credits: Needpix.com.

What Is a Safe Speed for Your Boat? It Depends on More Than You Think

6/4/2026

By John Tiger, boatingmag.com. With summer boating season in full swing, one of the most basic — and most overlooked — seamanship questions deserves a revisit: how fast should you actually be going? A new safety column from Boating Magazine breaks down the variables that determine safe speed, from experience… SEE MORE

A NOAA Fisheries-led team counts and samples Pacific salmon, trout and Arctic char below the NOAA Fisheries Auke Creek Research Station fish weir in Juneau, Alaska, May 4, 2022.(Image credit: NOAA Fisheries)

Pink Salmon Invasion in Great Lakes Has Lessons for North Atlantic, Arctic Communities

6/3/2026

By fisheries.noaa.gov, fisheries.noaa.gov. New NOAA-led research on the history of the rise of pink salmon in the Great Lakes may help fishery managers and communities on the North Atlantic and Arctic oceans tackle the recent rapid growth of the species in these new areas. It could also help those in… SEE MORE

Photo Credits

An aerial of Big Torch Key. Photo taken by the Federal Government on October 7, 1987. From the Wright Langely Collection.