USGS - science for a changing world

Pacific Coastal and Marine Science Center

Seafloor Mapping

Home - Images - Products - Data - Publications - Contact


Lake Michigan

Gull Island Reef Perspective Views

Return to the Gull Island Home Page

Click on the arrows within the index map below or the thumbnail images to view the perspective views.

Gull Island Index Map Gull Island perspective view 2

Larger View (176 kb)

Oblique view looking southwest toward Gull Island Reef. The front of the arcuate ridge (A) and radiating parallel ridges (B) of gravel and boulders are emphasized in this view. Also seen is the sand sheet draping the rough substrate (C). The vertical exaggeration is 4x and the distance across the bottom of the image is about 2.5 km.

Gull Island perspective view 1

Larger View (172 kb)

Oblique view of Gull Island Reef looking north. The arcuate pattern of the reef (A) is replicated in a step-like fashion into deep water (D). The ridge crest (A) is composed of boulders and cobbles as seen in video data (Guy Fleischer, NOAA, Seattle, Washington, personal commun., 2002). The vertical exaggeration is 4x and the distance across the bottom of the image is about 2.0 km.

 

Accessibility FOIA Privacy Policies and Notices

U.S. Department of the Interior | U.S. Geological Survey
URL: pacmaps/lm-gipersp.html
Contact Peter Dartnell
Archived in 2018