Logs for adambro 

15-Dec-05
This aqueduct is on the Calder and Hebble Navigation near Halifax. It carries the canal over a river which I think is the Hebble. It is just before a guillotine lock. 
 
This is Woodside Mills lock on the Calder and Hebble navigation near Halifax. 
 
03-Sep-05
Some interesting facts about GPS. Also nice to see geocaching being promoted.