Come Drink With Me - Cheng Pei-pei (1966) - Ho Sheung Heung, Sheung Shui

I believe the final fight of this film - where the bandits attack the convoy after they have been cheated out of their hostage by Drunken Cat - was indeeed shot in Taiwan. The terrain is too expansive to be Hong Kong and the mountains are not those found in Hong Kong. The immediate previous scene though - where the prisoner exchange takes place on a desolate hilltop - was shot in Hong Kong.

I always have trouble finding a suitable name for this location. I usually refer to it simply as "Pak Shek Au", but I'm not sure how much of this area falls under that name. This particular location - the hilltop where the gang leader's prison crate is pushed backdown the hill - is closer to Ho Sheung Heung and I have previously called it "Roy's Hill" (in a since deleted post) because it can be seen in the background of the opening fight scene of Enter the Dragon that features Roy Chiao. This hill is just slightly east of a small cluster of houses called "Phoenix Garden" - once again the Google marker is snapping to nearby buildings, so here is the position is GoogleEarth so you can see where I am referring to. In Open Street Map it's called "Kidney Hill". 

In Come Drink With Me, we're seeing it from its summit (lower two images) as Drunken Cat pushes the cart backdown the hill towards the Governor's troops. At various points of this sequence we catch a glimpse of how unspoilt it once was. Now it's just full of junk, corregated steel fencing, small industrial facilities and much of the site formation work for the first phase of the so-called "Northern Metropolis". I've chosen a selection of images to highlight some of the views.

The west flank of Crest Hill is the back ground in these two images above

The round hillock is called Fung Kong Shan and Yueh Hwa is looking NW.

The distant, grey hills are in Tanglangshan Park in Shenzhen, China