During WW1 the American Navy took over Dalmore Distillery and used it as a mine base.

The so-called ‘Yankee Pier’ still juts out into the firth. In the 1930s the RAF’s presence grew.

Alness became a training base for flying boats. In 1938 228 Squadron with Saro Londons and Stranraers came to the firth from Pembroke Dock and this was followed in October 1939 by 210 Squadron of Sunderlands and Catalina Flying boats.

By 1941 4C OUT was fully established at Alness with the officers based at Dalmore House and the ’tech site’ and repair and maintenance area at Alness Point becoming a very busy strategic point for training and North Sea surveillance. Short Sunderlands had a crew of 13 and by 1942 the OUT was producing 22 trained crews a month.

Yankee Pier looking toward Nigg Energy Port.

Looking over the Cromarty Firth which has in the past had 17 rigs stacked.

These rigs need periodic surveys and they come in and get work done – major maintenance or to install client-specific equipment top-side – before going back out to drill.

There are six ‘hot-stacked’ which are on ‘warm standby’, ready to go with 60 onboard, and another six ‘cold-stacked’, empty.

According to the BBC in August 2017 two men boarded a cold stacked rig:

'The pair, who describe themselves as "urban explorers", took a dinghy to the Ocean Princess, one of several offshore structures in the Cromarty Firth.

Police Scotland said it was aware of the incident and has begun an investigation.

The platform's owner, Diamond Offshore, confirmed an incident took place.

The Cromarty Firth Port Authority has declined to comment.

The incident is understood to have happened at the weekend and the men were thought to have spent a night onboard.'

Yankee Pier - Dalmore, October 2017

Oil rigs of the Cromarty Firth - October 2017