Help! Coolant leak can't be found! 98 V70 Wagon

[Newcut]

98 V70 Wagon, 170K. The leak is right above the front axles. I think it could be one of the return hoses from the heater core but by gawd I just can't find it. There is a "triangular" bracket that has a hole in it for access I assume to the hose clamp on a say 7 inch hose, because when I look through the hole I can see the screw for that clamp. It's leaking right above that bracket and it's in a bad spot, tried to see with a mirror but no go. Any one have an idea what that might be? A schematic perhaps?