Located among the Brewsters, these bedrock ledges have long been a danger to mariners.

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Short History
Shag Rocks has been site of several shipwrecks. Boston Light on nearby Little Brewster Island has served as a warning for mariners to steer clear of the rocks, as well as enabled many rescues.

General Information
This island of Boston Harbor Islands national park area is not managed by an agency.

Agency Designation:  None
Current Use:  Park purposes
Harbor Location:  Outer Harbor
Acreage:   1.3 upland acres
Highest elevation:  26 feet
Longitude: 42° 19' 47.0" North
Latitude: 70° 52' 58.0" West
Miles from Long Wharf:  10

Visitor Facilities & Services

Hours:	Access impractical	Piers/Docks:	No
Visitor season:	0	Boat slips:	0
Visitor staff:	No	Moorings:	0
Guided tours:	No	Park boats:	None
Lifeguards:	No	Car access:	No
Flush toilets:	No	Campsites:	0 (capacity ea: 0
Composting toilets:	No	Group campsites:	0 (capacity ea: 0)
Picnic areas:	No	Camping capacity:	0
Refreshments:	No	Cooking grills:	No
Drinking water:	Yes	Walking trails:	No

On-island Circulation:  None.

Natural History Overview
Vegetation
Subaquatic grasses and algae.

Wildlife
Survey in progress.

Geology
Rocky outcrops.

Water Features
None.

Views and Vistas
Boston Light; the Brewsters.

Structures
Buildings

• None

Fortifications

• None

Other Structures

• None