perhaps it was someone near by having a firework display

Zion Mainframe ...

Thanks for your response. I never thought of that, but to be honest, I have never seen the Northern Lights. I live in BC and my understanding is that you can see it from Alberta quite well. We go up north camping in the middle of nowhere every summer and I still haven't seen them so I doubt this is them. Also, the light appears to be coming from the ground upwords, doesn't it?

Pocket ...

It for sure couldn't have been fireworks .. there was no flashing of the lights. It was solid, non blinking and was there for quite a while. It never disappeared and I eventually went back to bed.

Any new sports ground/ car parks/ factories etc been/ being built nearby there floodlights can be seen for miles sometimes.

I agree with JohnB.
Whatever it is, it seems to be ground based.
It looks like floodlights to me.

It reminds me of the bright orange glow emanating from the greenhouses in rural Netherlands... Mostly Zuid Holland. It used to keep me awake sometimes, because I like to sleep when it's pitch black...

Definatly ground based. I say look into what kind of chemicals and other things can be used to create greenish light. Then you might be able to form a hypothesis of what the hell caused em'.

Are there any industrial factories or anything around there? if so it could be just some gas or waste being disposed of? this is the only good explanation i can think of, other than what others have said, like floodlights etc.

Around my area about 10 years ago the sky was red every night because of a steel Facoty, Ravenscraig i think it was called.

Anyway, this light took up the whole sky in that direction and it looked like an apocalypse was coming!

regards
Jonathan