3D Interactive Model


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Database Information Shipwreck Walrus aka Gray’s Reef Wreck

Basic Information

Name(s)  Walrus aka Grays Reef Wreck
Registry  US
Official Number  26225
Vessel Type Schooner
Year Built1857
Year Sank
Hull Material Wood
Engines None


Length 136 ft
Width 26 ft
Depth 12 ft

Vessel History

Complete Historic Information Linkhttps://greatlakeships.org/2906717/data?n=1 ,  https://greatlakes.bgsu.edu/item/479159

Wreck Site Information

Lake Michigan
State or Province Michigan
15 ft
GPS Coordinates 45° 47.880′  N 085° 13.320′ W
Site Description The site contains two sections of the side and a piece of the bow of a wooden ship. There are chain plates on one section of the side so it is assumed to be a schooner. The ship is assumed to be the Walrus but definitive identification would be difficult with such minimal remains.

Model Information


Photographer(s) Ken Merryman
Year Captured July 2021
Time it took to capture 15 min

Modeler Information

Modeler Ken Merryman
Date Completed 8-2021
Hours of input to complete 2 hrs

Technical Information


Camera – Canon 5d Mark IV in a Nauticam Housing with an 8” Dome Port
Lens – Canon EF Zoom 8-15mm set at 15 mm
Sensor – 36.0 x24.0mm Cmos 30.4 megapixel
Multi-Camera Rig – No
Camera Propulsion – DPV,
 Video or Stills – Stills
Number of images Submitted – 563
Image resolution (pixels) 6720 x4480
Lighting – Artificial & Natural
Number of lights – 4
If known Kelvin Temperature CRI 90
Light Output Lumens 2×10000, 2×5000

Model Information

Software Used Agisoft Standard Edition Version 1.7.1 Build 11797
Data Format .jpg converted from RAW
Number of Source Images used – 563
Are these images original or adjusted; Adjusted
Portion of the site covered: Complete

Publishing Restrictions

Licensing Usage Restrictions CC BY-ND
Attributed to: 3DShipwrecks.org

Resource Data in Database

Model  Yes
Source Images  Yes
Source CC .jpg
Number of Still Images 563
Video Clip None
Processing Report Yes
Camera Calibration .xml Yes