Tump Island is a small remote island located on the western side of the Cedar Island peninsula. It is part of the Cedar Island National Wildlife Refuge. The island is primarily marsh with small areas of shrub thicket and bare sandy habitat. The site supports nesting waterbirds during most seasons.

Conservation Issues

Erosion, disturbance to birds.

The island is posted, patrolled, and entirely off limits to visitors during the nesting season, from April 1 to August 31. Human disturbance during the nesting season is a serious concern.


The site is protected and managed by the United States Fish and Wildlife Service.


Shrubland, bare sand, grass.

Land Use

Wildlife conservation.

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