EPW042981 ENGLAND (1933). A recently constructed section of the A412 (North Orbital Road) beside the site of Denham Studios, Denham Green, from the south-east, 1933

No, this is not in fact a railway line. Denham West Junction for Uxbridge was further to the east than Denham Station. If this was the railway line here, it would still have track in place at this date (there is none), and it can clearly be seen that the 'line' does not even run into the station! The Grand Junction Canal runs under the main line just to the west of the actual junction, and it's not in this photo, it's the road mentioned seen passing under that bridge. That curved line of trees is in fact just an avenue of trees lining a lane - to nowhere, so it seems. (Check it out on www.old-maps.co.uk and I think you'll have to agree.)

Isleworth 1961 - you are of course quite correct - this curve of trees is NOT the Uxbridge line junction! Sorry for my basic error!

Check your Google Earth, you are the wrong side of the canal. This is a curved avenue on the Buckinhamshire Golf Club. I can see what you thought.

Curiously, this curved avenue does not seem to appear on any old maps. It still exists and runs though what is now the Buckinghamshire Golf Course. One wonders if it was not an ancient feature but was a convenient private thoroughfare built to connect Denham railway station with Denham Court Mansion.