CANADIAN GOLD PROSPECTING FORUM - Gold Prospecting Forums

Gold Prospecting Forums - General => Machine Assisted Placer Operations => Topic started by: leadshot on March 03, 2017, 01:50:45 PM

Title: Gold Rush Show amatuer dryland dredge experiment
Post by: leadshot on March 03, 2017, 01:50:45 PM
I noticed on the Gold Rush Show that most of the crews scape down to bedrock with big blade equipment. Do you think a dryland suction dredge operation could scavenge the good gold remaining after they do their removal?

Create or use a small pond, use a dryland suction nozzle and small trommel/sluice combo and take all the remaining gold-Any thoughts?
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: mcbain on March 03, 2017, 06:20:26 PM
Hi.Leadshot.You are not the first to ask that very question.And you are right.I think youcould do very well.You would have to be working the site with them.I think Pascal made a reply to this a while back.Some of those guys are back fiiling as fast as they go ahead and make it impossible to work behind them.Luck Mcbain.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: PhilipGold on March 03, 2017, 09:48:31 PM
Depends on the type of bedrock you encounter and the skills of the excavator operator. We dig 2 to 10 feet into the bedrock. All bedrock has to be dry and must use a scraping bucket.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: PhilipGold on March 04, 2017, 08:53:25 AM
It's mostly a yardage game. In the Yukon people go by the saying 100 yards/1 ounce Most plants run by one guy process 100-200 yards an hour. If the material is 100/5 ounces and more and the digging crew messed up the cleaning job,  a dredge can be profitable but with a dredge you only move one or two bucket of dirt per hour. So its like going sniping in creek with a pair of tweezers.

I made the second picture for the old man but that gives an idea how big is the ground.

pascal Dredge.jpg
camp.png
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: PhilipGold on March 04, 2017, 09:25:16 AM
Oh and wages,food, room and fuel each worker may cost 1-2 ounces of gold per day depending on the machine he runs and the purity of the local creek gold.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: leadshot on March 05, 2017, 05:46:42 PM
It would be a fun try. A quick test of an area would yield some answers.  A 1-2 oz/day would seem to justify expenses. I've been to this area and the gold is 20-30 feet deep. If the guys have removed all they want a small quick operation could possibly work out. The old original guys worked every layer to get it all.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: geezir on March 06, 2017, 04:37:30 PM
I noticed on the Gold Rush Show that most of the crews scape down to bedrock with big blade equipment. Do you think a dryland suction dredge operation could scavenge the good gold remaining after they do their removal?

Create or use a small pond, use a dryland suction nozzle and small trommel/sluice combo and take all the remaining gold-Any thoughts?
The equipment used in hydro excavation has improved greatly in the last few years. They would clean up bedrock.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: leadshot on March 11, 2017, 06:36:50 PM
There must be some enterprising sourdoughs in Dawson City that could provide their fine services fora percentage on a fixed clam.. After all, the ground is ready and the gold has certainly settled during the excavation process. Only a real on ground test would determine the cost/benefit (PROFIT) of this hydro excavation recovery system.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: PhilipGold on March 12, 2017, 03:05:28 PM
Already exist
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: leadshot on March 13, 2017, 07:00:54 PM
If it exists, any details on the following:  how large is the equipment, portability,area/day covered, yields and size of gold recovered.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: PhilipGold on March 13, 2017, 07:53:55 PM
A beer at the pit or the eldo will answer all those questions
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: leadshot on April 01, 2017, 05:37:58 PM
Any  pictures of Dryland dredging equipment in action on real Yukon sites?
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: PhilipGold on April 01, 2017, 08:31:13 PM
Load up a trailer with a dredge and go there if youre curious. I bought mine in Kenai Alaska and drove it to Dawson city Yukon
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: leadshot on April 02, 2017, 06:30:05 PM
Don't have a Facebook account..can't.... see the pics. I've been to Dawson City as a kid an as a visiting adult prospector(City public claim). I rented a mountain bike in town, peddled to the town claim as mostly taught newbies to pan. I had a great day there, but found no colors with my Garrett Gold Scorpion.  I actually talked to some real claim owners and said I should be digging 10 meters deeper to get the good stuff!
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: mcbain on April 03, 2017, 08:32:42 PM
Hi.Leadshot.Any idea on 10 meters?Roughly 40 ft.That is a long ,long way too dig.Your idea is good but the minors figured it out a 100 years ago.Only the sloppiest leave gold behind.You might follow the Hoffmans more closely ;D ;D ;D.Luck Mcbain.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: leadshot on April 04, 2017, 06:19:34 PM
Maybe I'm describing the dryland dredge wrong. It is a regular water suction nozzle driven by a high pressure water pump. The dryland version has an additional water power-jet inside spraying the surface while the suction grabs the agitated material at the nozzle opening. It creates its own miniature  pond at the nozzle.

It would seem to me that some gold would have settled on the cracks of the bedrock material after the power shovels and dozers removed most of the paydirt. The dryland nozzle removes whats left and can be further classified in a small trommel or sluice box operation..

If someone is using this type of system in those Yukon digs...... I would like to see a picture.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: mcbain on April 04, 2017, 07:05:38 PM
Hi.I think we all no what a dryland dredge is.Some even use them on a regular  basis.I think What Pascal and others are trying to tell you is,Been there done that or are still doing that.I do not think that there is anything real minors have not tried or invented.( key word  Real minors).The serious minors recover every bit of dust they can.It is their lively hood.That being said the CRAP you watch on TV is just that.CRAP.Those guys are highly paid to put on a goon show,They call it reality TV.Nothing real about it at all.Just saying luck Mcbain.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: leadshot on April 09, 2017, 06:34:31 PM
Thanks for all your discussion on this type of mining. I guess I will have to imagine the equipment setup. If I ever get back to Dawson City again, I will try to visit a non-TV small surface mining operation to take a look at it.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: PhilipGold on April 10, 2017, 08:37:24 AM
Are you talking about a keene highbanker suction dry dredge from California? A suction plaform keene or Dutch? A cutter wheels suction dredge like in Guyana Or a New Zealand trommel?
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: leadshot on April 13, 2017, 06:47:33 PM
Hydro-force suction nozzle moving material to be further classified by small trommel/sluice combo or large high banker type sluice. Power jet at the nozzle provides water at the nozzle mouth to break up and stir up the heavies, the rest of the flow creates the suction to moves the material to the classification devicesHyro-force suction nozzle.jpg
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: mcbain on April 13, 2017, 07:12:01 PM
Hi.Leadshot.It has been around for years ,nothing new.Although illegal in a lot of places.I am guessing it or similar is widely used.Just saying Luck Mcbain.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: PhilipGold on April 14, 2017, 07:31:38 AM
There is the Frontier store on front street in dawson city that sells the Keene version of the Hydro force.
95% of the know 1 ounce to the pan of dirt has been worked by  3 to 6 differents generations. People now mostly work 1 oz to 100 cubic yards or so ground.  Gold is easier to make in California if the EPA lets the miners do something overthere. Maybe one day.

I see tons of people coming in years after years with a small 30-50 excavator or a tractor or a back hoe, they always end up a few months later for sale to pay for fuel to get back home. 
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: PhilipGold on April 17, 2017, 08:14:53 AM
I still encourage anyone willing to see the north it is a great place to see and work. Money can be made working for someone or by establishing a business such being a mobile welder, mechanic, driller, machinist but it is tough on the mental and body.

To start a gold mining operation access to 1 million$ and knowledge is almost a must.

Money can be made using a hydro force or keene highbanker but it is all about volume and as soon someone see you make money they will tell their crew to clean better their excavations and some operators won't like you, that you got gold they left over. It's a catch 22
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: leadshot on April 28, 2017, 06:17:44 AM
An agreement with the claim owner to share a percentage of gold found is in order. The advantage is that the claim owner has removed all the overburden. Certainly the small hydro force dredger(scrounger) would have to have the the percentage to make a profit. With the right terms everybody walk away with color in their pocket. Lets not talk about those pesky insects that inhabit the air everywhere  during the mining season.
Title: Re: Gold Rush Show amatuer dryland dredge experiment
Post by: Roger M. on May 25, 2017, 12:45:23 PM
Lets not talk about those pesky insects that inhabit the air everywhere  during the mining season.
It's funny how the TV "Gold Rush" shows don't ever show what the bugs are really like out on the creeks.

Dawson City is pretty much bug free in the summer months, as the civic folks spray all the standing water for a couple of miles or so around the town itself ... but get out on the creeks, there's no spraying, and millions of bugs eating everybody alive 24/7!

It all looks so easy on TV!