Well there was fine gold found UG up in Mt. P, so it stands to reason that if there was any elluvial shedding, it should be in the tribs that come down the hill. That's not to say that any of the other tribs would not hold gold either. The area was mined but the deposits located were small.
Look for some sweet spots in the creek. If it looks like you should go snd get permission to be there, don't be scared, just rock up to a door and knock!
From
http://www.treasureenterprises.com/gold prospecting information/Gold_Occurrences_in_North_Qld.htm
Mount Peter Goldfield
Some 11,000oz of fine gold were obtained from half a dozen irregular quartz lodes discovered in 1915 on the steep northern slope of Mount Peter, 5 km west of Gordonvale and 8 km south of Edmonton.
The lodes trend north-east and east-south-east across the regional strike of the Barron River Metamorphics and contain shoots that are small and widely spaced , dipping 60 to 75 south or north, or vertical, and trending north-east and east-south-east across regional strike of schists. The shoots were small and widely spaced. The average recovery grade was 1oz 18 dwt per ton, though values of 41oz per ton were reported in some of the shoots.
The main lode was the Talisman (which was mined to a depth of 90m) contained gold as well as a little pyrite, chalcopyrite and arsenopyrite. There was little activity after 1951.
There is still scope for prospecting for new shoots in the precipitous country, both on the field and further to the west.