The image quality isn't great, nor's the framing to be honest. They're quickly shot digital camera shots, quite a lot of the shot in heavy rain - some of them got deleted because the rain was so heavy you could barely make out the object being photographed!
Near Plas Gwynant; I think. Sadly the rain made most of these photos unusable.
There were several buildings, or ex buildings around this patch; one still standing but too far into the woods for my camera (even with flash) to get even a single shot in the deluge; this one appears to have been leveled deliberately; bits of it lie on either side of the footpath.
In this one you can see the upended remains of a range / stove; sadly the lighting was terrible; but on the underside you could make out that it still had the covers for the hot-plates; the fuzzy gunky stuff on the side was once insulation.
These shots were all taken around the various tracks up to Mt Snowden; particularly around Llyn Llydaw and Glasyln. The area was once home to a copper mining I think, also there's been an awful lot of quarrying over the years.
This last shot was taken near Beddgelert - it's in line with a bridge over the road and a rather abruptly ending embankment - visible here as a road crossing the A4085 just below Beddgelert. I've no idea what it was. My first guess of being related to a bridging structure seems unlikely, 'cos the walls are so thin....
You can see two parallel lines leading to it in the field in this arial photo, too.