
Tugidak Island stands isolated in the Pacific Ocean at the southwestern edge of the Trinity Islands archipelago. This 1953 survey, compiled from aerial photography and hydrographic charts, reveals a landscape dominated by low-lying terrain and an intricate network of small interior ponds. The coastline is defined by a significant Tidal Flat on the northeast shore, suggesting a dynamic environment of shifting sands and tide-driven change. Evidence of human presence is sparse but distinct, marked only by a small cluster of Cabins on the southern coast. These structures likely served as seasonal shelter for hunters or fishermen in this maritime environment, providing a rare inland reference point on an otherwise remote island profile.
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1951 · Trinity Islands
USGS Topo · 1:250,000
1952 · Trinity Islands B-3 and C-3
USGS Topo · 1:63,360
1952 · Trinity Islands B-2 and C-2
USGS Topo · 1:63,360
1954 · Trinity Islands B-2 and C-2
USGS Topo · 1:63,360
1954 · Trinity Islands
USGS Topo · 1:250,000
2021 · Trinity Islands C-3 SE
USGS Topo · 1:25,000
2021 · Trinity Islands C-3 SW
USGS Topo · 1:25,000
2021 · Trinity Islands C-2 SW
USGS Topo · 1:25,000
2021 · Trinity Islands B-3 NE
USGS Topo · 1:25,000
2021 · Trinity Islands B-2 NW
USGS Topo · 1:25,000