I stayed overnight at the cabin and decided to try putting a fish trap in the pond by the water inlet even though the pond is still frozen.
In the last 3 years since stocking trout they have never survived the winter, well maybe I've broken that curse.
Here's a 9 inch brookie I got in the trap this morning, when I go up next week I'll put in 2 traps hoping to snag some tiger trout too.

The pond is still mostly froze, the stream pump must have kept the O2 level enough for the trout, I have the 2 inch siphon pipe working now also, total of 72gpm.