I know it's pretty flat around Manteca SchoolOfHardRocks but when you get up in the Tertiary gravels everything is at right angles to where you live.
The unworked gold bearing Tertiary gravels are almost by definition far from an easy source of water. A better solution than killing yourself hauling buckets to a sluice that might be miles and thousands of feet in elevation away is to learn to get the gold where you find it.
It's a common mistake for new prospectors to get all wrapped up in their favorite method of mining. Sluicing is fun compared to most other forms of mining. You've got a nice burbling creek and plenty of shade nearby, the ground is fairly level and the equipment is light and quick to set up. It's more like a weekend camping party than real work. I can certainly appreciate sluicing for all it's good points, wish we could do more of it here in the desert.
The fact of the matter is that you will always need to adapt your method of mining to the deposit. Taking a sluice or dredge into the desert isn't going to do me any good when there is no water. People are often impressed at how much good gold comes out of the desert in Arizona. The big secret seems to be that California still has a lot more available gold than all our deserts will ever produce. You just have to go where the gold is and mine it in the most efficient way possible. That's always been the case, gold is where you find it - an inconvenient truth sometimes but a truth nonetheless.
If you want to get good gold you have to find it before you can figure out how to mine it. Digging the same ground that's been dug a thousand times before by other prospectors won't find you the big strike. Looking on the inside of the bend or behind the big boulder on a California gold bearing river has been thought of, and done, before you got there.
If you are happy with what was left behind by the last 10 prospectors then please continue sluicing those spots, as I said, it makes for a pleasant camping trip. There is nothing wrong with enjoying your weekend and getting a little gold to boot.
Prospecting is the act of looking for gold. Bringing mining tools, and methods, to a prospecting expedition is a sure way to guarantee you won't be coming home with a full poke. If you are driven to find that big strike you will have to move uphill. It's still out there for those willing to do the research and the work.
Heavy Pans