Great scenery with the view point from a plane and also from the ground. This is a great portrayal of life in North British Columbia, the mining, outdoor life. And the movie is proof certain that any idiot can land a float plane and that is all I have to say about that.
The title of the movie, let's you know there is mining involved; gold mining. This means there are some interesting underground scenes with shall we say vintage equipment. They build tension in a number of ways, the creaky mine(s) go a long way. Then there are the people, do they have an agenda, "What happened to your partner? He died." And of course if there is gold in the thar hills, you know that brings out the best in people.
Heston plays a good role as the old hermit, (and his twin brother). "Takes a steady hand for blasting." he says while trembling. Followed of course by more creaky sounds.
Is it family friendly? They keep their clothes on if that is your issue. There is the tension as already mentioned, and of course that is reinforced by the sound track. In my best Emerald Forest Chief Wanadi voice, "when you hear the sound of the oboe, trouble is not far away".
Will I watch it again? I don't know, it is a B movie. It came with Jeremiah Johnson.