Join Free
2021 Map of Trinity Islands C-3 SW, 2021 Print
Loading...
Loading map...

2021 Map of Trinity Islands C-3 SW

USGS Topo · Published 2021

About this map

The Gulf of Alaska fills this entire maritime quadrangle in the Trinity Islands region, illustrating a purely nautical environment south of Kodiak Island. Published by the U.S. Geological Survey as part of the modern US Topo series, the sheet covers open water with no terrestrial landforms or human settlements present. While many topographic surveys detail the complex coastlines and rugged elevations of Alaska's archipelago, this specific chart serves as a spatial placeholder for the sea lanes and maritime boundaries of the North Pacific. The absence of contour lines is due to the lack of elevation data meeting national accuracy requirements for the seafloor in this specific grid, emphasizing the deep-water character of the area.

Find a feature on this map

1 named feature on this map. Tap any name to fly to it.

Don’t see what you’re looking for? This feature index may not catch every label — zoom into the map to look around manually.

Map Details

Date Portrayed2021
Date Published2021
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:25,000
Physical Dimensions24 x 29 inches

Editions of this 2021 Trinity Islands C-3 SW Map

This is the sole edition of this map. No revisions or reprints were ever made.

Historical Maps of Kodiak Island Through Time

335 maps found

Featured Locations

Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain