Category:Canal tunnels in the United States

Subcategories

This category has the following 5 subcategories, out of 5 total.

Media in category "Canal tunnels in the United States"

The following 2 files are in this category, out of 2 total.

• 
  BOAT TUNNEL AND NAVIGATION LOCK FROM THE MERRIMACK RIVER INTO THE NORTHERN CANAL. PART OF THE NORTHERN CANAL GUARD GATES SITE, VIEW IS LOOKING NORTHEAST TO THE CANAL- 1976 - HAER MASS,9-LOW,15-5.tif 5,000 × 3,567; 17.01 MB
  
• 
  BOAT TUNNEL AND NAVIGATION LOCK FROM THE MERRIMACK RIVER INTO THE NORTHERN CANAL. VIEW IS LOOKING NORTHEAST TO THE CANAL- Jack Boucher, Photographrer 1976 - Northern Canal, HAER MASS,9-LOW,15-6.tif 5,000 × 3,589; 17.12 MB