This AOP was mentioned in Philip Cracknell's book " Battle of Hong Kong". The location marker is not accurate, because I do not know where it actually is.
Philip cracknell mentions Mt Butler AOP and Mt Parker AOP.. He says that the two AOP's are completely different and this one was built on the 15th of December
Here's Philip's mention of this AOP, on pages 90-91 of his book:
East Group, RA, [...] utilised AOPs at Stanley Mound, Braemar Hill, Pottinger Peak, Mount Parker, Red Hill, and Jardine's Lookout. Two additional AOPs were opened on 15 December, one at Sai Wan AA Fort, and one on Mount Butler.
The first six were the permanent AOPs that appear in Rob's list at https://gwulo.com/Artillery-Observation-Posts-in-Hong-Kong. They were solidly-built concrete structures, and if they haven't been demolished they are still very clear to see today. The "additional AOP" on Mount Butler was likely created at short notice. It's not clear if the observers there had any trench or other structure to protect them, and whether any traces of it remain.
On page 175, Philip writes:
By noon on Friday 19 December, the Japanese had control of all the high ground to the south of their landing area, consisting of Mount Parker, Mount Butler, and Jardine's Lookout.
So this AOP was only in use for four days or less.
Comments
Mt Parker AOP
This is accurate: https://gwulo.com/node/2595
AOP
Philip cracknell mentions Mt Butler AOP and Mt Parker AOP.. He says that the two AOP's are completely different and this one was built on the 15th of December
Mt Butler AOP
Have a look at https://gwulo.com/Artillery-Observation-Posts-in-Hong-Kong#9/22.4939/11… to compare the positions.
Temporary AOP, Mount Butler
Here's Philip's mention of this AOP, on pages 90-91 of his book:
The first six were the permanent AOPs that appear in Rob's list at https://gwulo.com/Artillery-Observation-Posts-in-Hong-Kong. They were solidly-built concrete structures, and if they haven't been demolished they are still very clear to see today. The "additional AOP" on Mount Butler was likely created at short notice. It's not clear if the observers there had any trench or other structure to protect them, and whether any traces of it remain.
On page 175, Philip writes:
So this AOP was only in use for four days or less.