History
More about HMS Colossus
Start the dive trail
View 3D model & dive stations
Dive trail plan
2D plan of wreck & Dive Trail with video
3D multibeam sonar survey
View the sonar survey in 3D
Dive videos
Go on a guided dive tour of the wreck
Dive slate
PDF download to print
Two unusual lead objects
19th century diving on Colossus
Deadeye and chains
Deadeye complete with iron chains
News & contributions
Latest updates & dive photos
Add your own photos & videos
Contribute via social media & email
Glossary
Technical terms explained
About
More about this project
CISMAS
This project was undertaken by CISMAS – Cornwall and Isles of Scilly Maritime Archaeology Society

Commissioned by

Armstrong

John Armstrong was the surveyor General of Ordnance from 1725-1742.