Gold Fever!!!      

Tomah Wisconsin GPAA Chapter – January 2017


Welcome to the 2017 GOLD FEVER Newsletter.  Another year, another gold prospecting opportunity.  If you have not tried to find gold, you need to give it a try.  Let us know if you need help to get started, there are many people with experience that the help you.

 Do not forget the Newsletter and pictures can always be found at:

President’s Message

Hi all,

  I 'm sorry I had to cancel the December meeting but the storm did come in just as they predicted. Though the roads were fairly clean in the morning there were still slippery spots and it didn't pay to endanger anyone. We will try again in January. The gift exchange will go on as planned. I hope you all can make it and we don't get another snow storm or ice storm like on Christmas.

I had my cataract surgery on Dec 22 now 4 days later I still don't have perfect vision but it is better than it has been since last march. Night driving has improved 200 percent, no glare. I go back to the doc on Friday hope for more good news and better eyesight as the days go on. This was the best Christmas gift I could have gotten.

I talked to Larry Bender the night I cancelled the last meeting. He still has lots of pain and my not be able to join us for quite a while.

Cold weather and surgery has shut me down as far as panning is concerned. I have received a couple of calls from new prospectors about what equipment they should buy, i told them to look at the Keene sluces but if they could afford it to check out gold hog matting. I keep hearing good things about gold hog it is just more costly and I like my Keene. 

Hope you all had a great holiday.  Mike Fait



Upcoming Events

January 7, 2017 – Wausau Club Meeting – Geode Digging in the Midwest –  at 11:00 am

January 21, 2017 - Tomah Club Meeting at Town of LaGrange Town Hall – Christmas Party - at 1:00 pm

February 4, 2017 – Wausau Club Meeting – Alaska Gold by Dean Race – at 11:00 am

February 18, 2017 - Tomah Club Meeting at Town of LaGrange Town Hall – at 1:00 pm

March 4, 2017 – Wausau Club Meeting – God Cube by Kurt Bublitz – at 11:00 am

March 18, 2017 – Tomah Club Meeting at Town of LaGrange Town Hall – at 1:00 pm


Tomah Wisconsin GPAA Chapter Minutes December, 2017


Old Business:                                                                                                                                                              

The December meeting was cancelled.

 New Business:

Next meeting January 21st at the Lagrange Town Hall at 1:00pm.  

 Christmas exchange was discussed $10.00 gift to be given it should be for either a man or a woman. If you give a gift you get a ticket to take a gift back. You do not have to participate if you don't want to or you forget.

The next club outings will include Nugget Lake on June 17th and South Dakota Outing – May 20th.   

Raffles:     None                                                                                                                                                                        

Gold Price on 1/4/17 was $1,163.10               Silver Price on 1/4/17 was $16.40

Respectfully submitted by Diane North – Newsletter Editor

The Helical Flow Effect

  What Impacts Helical Flow?


Now precisely understanding helical flow itself, like so many things concerning hydrodynamics is not so much science for given creek bed as it is art. It's the art of spotting where the average flow would've taken the gold including all the obvious natural flow variations that impact the flow and where it deposits your gold. Below I list some things that will impact the accuracy of your helical flow estimation:


Turning flow - Of course, as I mentioned earlier helical flow will change based on turns and the type of turn. For example the vortex flow formation depends on how sharp and even the turn is and how deep the creek bed is, along with boulders or other obstacles in the flow.


Straight flow - As the turn begins to straighten out helical flow will sweep things into the centerline. Of course between turning and straight that line is going to cross to mid-stream in a kind of S-curve from the side where the curve is bent to the middle as the stream flow straightens. Notice the gold line doesn't go immediately to the center line, instead it sweeps slowly from the outside to the middle and then as the turn bends the other direction it will trail over to the other side. This pattern is typically shown is an S-curve across the centerline and down the middle if the stream is straight for a sufficient distance. Of course what is sufficient depends on the speed and uniformity of the flow through that region.


Notice how often things about flow and gold deposits get qualified with a qualitative "it depends" factor. It's important to note that the science of understanding water flow is by definition approximate at its best. In a real world setting, this often means you're better off just getting a feeling for what the flow may do and then use that understanding to form your hypothesis for where to take your gold samples. Then use the samples to prove that your hypothesis is true or false by measuring the gold in your samples.                                                                                                                                     


Key objective: What does the gold sample predict about where to sample next? Start by sampling in the areas that your flow based hypothesis or educated guess predicts the gold will concentrate. This hypothesis is based on your best guess using a bit of art, science and a whole lot of experience. You'll get this experience and ability when you have tested enough samples. You'll learn this stuff best by prospecting more and taking more samples.


Large obstacles - Objects such as boulders, cliffs and bedrock obstacles that jut out into the creek and other flow disruptions of sufficient size will definitely affect helical flow and the formation of helical flow which in turn affects where gold will tend to concentrate. In fact obstacles and their flow disturbing turbulence will impact whether a pay streak will form at all. Keep that in mind if there's a big disturbance in the high water flow. That disturbance may easily alter where your helical flow would tend to deposit gold. For example a large boulder will tend to form a great big trap or sweeping eddy current and break up the helical flow at the same time. A big trap like that will tend to trump the S-curve and the linear gold placer paystreak rules given earlier. At that point you're looking for a big placer pocket or downstream gold trap.                                                                                                   


Stream speed drops - As the stream-flow slows down the gold will tend to drop out of the flood flow at the point where the flood speed starts to decrease. These will also disturb the existing vortex flows if any exist. Look for sudden widening or deep pooling areas. Anywhere a fish would like to feed as food drops out of the flow. This is also where cobbles and gravel tend to collect in flood conditions. Avoid smooth bowls as your gold will tend to blow out of those in a rushing flood.


Why Do Helical Flows Sweep Gold?

The vortex formed in helical flow contains energy. Helical flow energy takes the form of the rotating and moving mass of water and debris. Much like the prop wash of a boats propeller, this dynamic rotating water power energy will move things that it pushes against. When a stream of water and bedload entrained in it moves, it's actually moving a fair amount of mass per unit volume. That flow contains energy in the form of mass and speed. This energy, when restricted to the creek bed, will tend to take on certain flow patterns based on friction and flow restrictions. One of these patterns is the formation of a helical-flow; of course there are other jet patterns and turbulent eddies that can take place as well, especially when flow-disturbance and turbulence are involved.                            


For helical flow the energy is contained in the downstream movement of mass and in the sideways rotation of the complete stream bedload and water mass. It's a rather complicated thing but just knowing that it behaves like a massive corkscrew is good enough for what we do here.


The sweep of bedload material contain your gold is both along the flow (in a line downstream) and partly sideways to flow (rotating perpendicular-to-streamflow) that means gold will generally move diagonally until it finds a trap or lower speed drop point.  Just keep in mind speed changes as the corkscrew turns based on how much volume of water must flow through a given zone along with friction.


If more water has to make it through a given amount of time the water's going to speed up, if it's less volume per time then it slows down. That slowing action is what drops the gold. As I mentioned earlier, you'll want to look for wider or deeper transition regions in the high water flow. These are places where it will slow the flow "just enough."




The final chapter Next Month with:  What Are Some Other Clues To Look For?

Prospector Jess -

Officers – elected for 2017.

President – Michael Fait ( 715-384-9265

Vice-President – Gary Morrison 715-316-2160

Secretary – Jeanne Morrison 715-316-2160

Newsletter Editor - Diane North ( 608-635-7031

Treasure – Gayle Fait ( 715-384-9265

Outing Chairman – Jeff Hastings (  (608) 637-3097

Claims Director – Richard Niemyjski ( 608-637-3295

State Director – Mike Flint ( 608-372-0694

Wisconsin Area Clubs

Greenbush Wisconsin GPAA Chapter – Greenbush Prospectors meet every second Saturday of the month at Salem United Methodist Church   120 Sheboygan St.    Fond Du Lac, WI. 54935 (change of time) 1:00 PM Meetings

Midstate Metal Detecting Club – meets every 3rd Wednesday at 7:00 pm at Shooters Bar and Restaurant at the intersection of Hwy 39 and 54, next to the Shell Station.  Contact: Steve Miller 715-572-1845

Wausau Prospectors – meets the 1st Saturday of the month at 11:00 am at the Village Town Hall in Brokaw Wisconsin. Address is: 218 2nd St., Brokaw, WI. Take US 51 north of Wausau and take exit 197. Then go east on county road WW. At the 4 way stop in Brokaw take a right. You are there (just past the Credit Union).  Contact:  Kurt Bublitz 715-340-2831 or e-mail

Wisconsin Northwoods Adventures GPAA Chapter – holds their meetings on the 2nd Saturday of every month at 11:00 am, at the Cameron Community Center, 512 W. Main Street, Cameron, WI. Contact Dave “Wire” Heinsohn (715) 353-2261