Did you have a look or any luck searching?
Gold and gemstones can have a relation depending on what the strata and minerals are doing. Around my area ( vic ) there's granite which varies in compositions of minerals which formed types of crystals and gems around a massive radius. The genstones like sapphire and ruby tend to be more the granites with high alluminium content, where as amethyst and quartz / silica based crystal points are formed many km away where pegmatites and crystal structures went through slow cooling to form large crystals with nice flat edges fully formed.
Depending if gold was in the solutions that were brought up in things like granites and quartz under high temperatures and pressure from the earths core, you may or can find gold in these areas of 'high mineralisation'. Gold relates to various mixtures of minerals in an area, some good signs for my area are tin, copper, antimony and pyrite.
If gold was in a silicate based hydrothermal like quartz veins, it has been known for gold to be found at the base of quartz crystals as well as all through the quartz mass itself. Gold gets deposited along certain circumstances and patterns can be formed or unique deposts can be formed, most scenarios with each area is a different story though, but if the basic signs of mineralisation, strata and formations are there, gold will be there too.
I've read and heard the nanes of the places you have mentioned many tines, so I don't see why you won't see gold as soon as you get to most creeks in that area
to top it off, you score lots of nice colorful sapphire and all sorts too. Good luck mate, love to hear or see through photos what you find!
