BajaNomad

Old Manganese Mine...more info?

rhintransit - 3-1-2011 at 07:15 PM

Old Manganese Mine...more info?

thanks to Pompano for his recent post "Day on the Cortez..." I'd like to know more about one particular photo/site, that of the old manganese mine at the tip of the Conception Bay Peninsula, so am starting a new thread rather than doing a hijack of that post.

I spent several days camping at the area two years ago, but no one in our party could come up with much history of the mine. a geologist in the group had found the name of the company but drawn a blank when researching it. for some reason we all assumed it was part of the US war effort. Pompano refers to it as "THE OLD MANGANESE MINE…WWII VINTAGE...ORE WENT TO THE GERMAN’S WAR EFFORT…CLOSED WHEN THEY WERE DEFEATED"

and from David K:

Quote:
Originally posted by David K
Thank you very much Roger! I specially enjoyed seeing the magnesium mine... I had not seen photos of it before. First heard about it in Jim Hunter's 1977 book 'Offbeat Baja'.


I don't have access to that book but I'd like to know more about the history of the mine. the ruins there are quite extensive, it must have been a big operation. are there Nomads out there who can tell us about it?

mulegemichael - 3-1-2011 at 07:44 PM

all i've heard is it's the "snakiest" place in baja...not my favorite place to camp...tom and patti, our local favorite travel writers, might have a lot more insight into the history of the place.

rhintransit - 3-1-2011 at 07:54 PM

will post a few photos from the trip, which was in 2008, longer ago that I remembered. the site is spread out over a lot of territory; the tailings are extensive, and the housing (best guess) areas are fairly distant from the central area. some really interesting 'what would that have been?' structures, etc, all spread out, such as a really neat very large patio type area overlooking the sea on the bluffs north. here's a shot of the main area...

IMG_2619.jpg - 47kB

Marc - 3-1-2011 at 10:38 PM

Do you have a GPS reading??

David K - 3-1-2011 at 11:49 PM

I have read here on Nomad of people in Mulege that lived out there (as kids) when the mine was in operation.

Perhaps use Nomad search... and just enter Manganese...?

David K - 3-1-2011 at 11:51 PM

Quote:
Originally posted by Marc
Do you have a GPS reading??


Hi Marc, I am heading to bed now, but until I get to it, use Google Earth... the mine is near the tip of the Concepcion peninsula, and on the Cortez (east side) coast... at the end of the road.

GERMAN’S WAR EFFORT

mcfez - 3-2-2011 at 06:20 AM

Yeah....that caught my attention too. I thought the Mexican Govt had set up certain posts throughout the land in WWW to prevent the bad boys from taking over. My research showed zero too.

http://www.geoscienceworld.org/

[Edited on 3-2-2011 by mcfez]

David K - 3-2-2011 at 08:58 AM

Since Mexico was a Allied Country (on our side), I think any manganese went to us rather than Germany... An ore ship would be east target for a sub or destroyer to hit returning to Germany, as well.

Pompano - 3-2-2011 at 09:47 AM

My information came from Blackjack many years ago.

Of course, JW had a macabre sense of humor around a campfire.....:yes:

Do you want me to research it further amongst some elderly historian types in Mulege? It will cost you a beer.

bajaguy - 3-2-2011 at 09:49 AM

I'm in.....

Would be interesting to know more info

rhintransit - 3-2-2011 at 10:16 AM

Quote:
Originally posted by Pompano
My information came from Blackjack many years ago.

Of course, JW had a macabre sense of humor around a campfire.....:yes:

Do you want me to research it further amongst some elderly historian types in Mulege? It will cost you a beer.


would like to know more, I'm in for a beer or two.
here's another photo to whet the appetite...from the beach where we camped.

IMG_2603.jpg - 45kB

bajalou - 3-2-2011 at 10:25 AM

I think this is it.




[Edited on 3-2-2011 by bajalou]

rhintransit - 3-2-2011 at 10:42 AM

Quote:
Originally posted by bajalou
I think this is it.

[Edited on 3-2-2011 by bajalou]


yes, that's it...we climbed some of the trails where they/someone had mined the ore, you can see faint indications on the hills. on the other side of the hills is evidence of other structures, maybe living quarters or something.
here's another interesting shot of ???

[Edited on 3-2-2011 by rhintransit]

IMG_2611.jpg - 47kB

mcfez - 3-2-2011 at 11:03 AM

Quote:
Originally posted by Pompano
My information came from Blackjack many years ago.

Of course, JW had a macabre sense of humor around a campfire.....:yes:

Do you want me to research it further amongst some elderly historian types in Mulege? It will cost you a beer.


That be great if you could dig around for info...

Barry A. - 3-2-2011 at 11:11 AM

Not directly related, but in my research I came across this:

Of possible interest???


http://agoracom.com/ir/BajaMining/profile

rhintransit - 3-3-2011 at 10:21 AM

bump...someone out there must have some information

rockman - 3-18-2011 at 11:59 PM

There are several references to the Gavilan mine which produced manganese (not magnesium) for the US war effort during WWII. At that time, more than 6,000 people worked at the mine. It was operated by a Mexican subsidiary of the Homestake Mining Co. Lessened post-war demand diminished the output, and the mine closed when a hurricane devistated much of the infrastucture in 1946. Although many of the foundations and concrete floors still survive, all of the equipment was salvaged and moved to other operations. The ore consisted of veins of pyrolusite, traces of which can still be picked up. There are great campsites, but the drive from the west side of the peninsula to the east can be quite challenging. High clearance is mandatory.

Best References:
Baja Explorer magazine (Later called Baja Life), Nov-Dec, 1991. Article by Bob Vinton.
Manganese on Punta Concepcion, by James Noble, Calif Inst of Tech, in Economic Geology, v45#8, Dec, 1950.

1bobo - 3-19-2011 at 06:40 AM

There was a Ford Explorer type SUV and a 9 passenger van parked on the beach just south of the mine on Thursday. The van might have been 4WD, probably was, but wasn't "tricked out" like some. So maybe the road isn't too bad.

I have some small pieces of ore I was told came from one of the mines. Very dark gray, almost black, and very heavy.

There are large concrete "deadmen" on the hills, and no evidence (that I've seen) of pier structures in the water, so likely they cabled the ore to ships standing offshore. Must have been interesting to witness.

wessongroup - 3-19-2011 at 06:41 AM

Thanks much... amazing what happens here with a question...

David K - 3-19-2011 at 07:56 AM

Quote:
Originally posted by rockman
There are several references to the Gavilan mine which produced manganese (not magnesium) for the US war effort during WWII. At that time, more than 6,000 people worked at the mine. It was operated by a Mexican subsidiary of the Homestake Mining Co. Lessened post-war demand diminished the output, and the mine closed when a hurricane devistated much of the infrastucture in 1946. Although many of the foundations and concrete floors still survive, all of the equipment was salvaged and moved to other operations. The ore consisted of veins of pyrolusite, traces of which can still be picked up. There are great campsites, but the drive from the west side of the peninsula to the east can be quite challenging. High clearance is mandatory.

Best References:
Baja Explorer magazine (Later called Baja Life), Nov-Dec, 1991. Article by Bob Vinton.
Manganese on Punta Concepcion, by James Noble, Calif Inst of Tech, in Economic Geology, v45#8, Dec, 1950.


Thanks Norm, I will see if I have that edition of the Baja Explorer magazine.

I always thought it was interesting that Erle Stanley Gardner never mentioned the mine when he explored the Concepcion Bay Peninsula in 1966. He made it a mystery to be solved in his 1967 'Off the Beaten Track in Baja'. Perhaps if he revealed there was a mine out there it wouldn't seem like he was the first to explore the area?

surfer jim - 3-19-2011 at 10:19 AM

I see some waves in one photo.....now that is good to know.:biggrin:

roundtuit - 3-19-2011 at 11:22 AM

There is a fishing guide in Mulege by the name of Mateo who everybody here knows. He can tell stories about it as either he or his sister lived there with Mateos folks. His dad worked at the mine

David K - 3-19-2011 at 12:02 PM

Quote:
Originally posted by rockman
There are several references to the Gavilan mine which produced manganese (not magnesium) for the US war effort during WWII. At that time, more than 6,000 people worked at the mine. It was operated by a Mexican subsidiary of the Homestake Mining Co. Lessened post-war demand diminished the output, and the mine closed when a hurricane devistated much of the infrastucture in 1946. Although many of the foundations and concrete floors still survive, all of the equipment was salvaged and moved to other operations. The ore consisted of veins of pyrolusite, traces of which can still be picked up. There are great campsites, but the drive from the west side of the peninsula to the east can be quite challenging. High clearance is mandatory.

Best References:
Baja Explorer magazine (Later called Baja Life), Nov-Dec, 1991. Article by Bob Vinton.
Manganese on Punta Concepcion, by James Noble, Calif Inst of Tech, in Economic Geology, v45#8, Dec, 1950.



Here is the magazine cover, followed by the 4 pages of the article by Baja Bob (Bicycle Bob) Vinton!











The Baja Explorer Magazine was one of the great creations of Landon Crumpton, who also published the Baja Atlas and Baja Almanac Map Books.

David K - 3-19-2011 at 07:49 PM

You guys able to read the article okay?

rockman - 4-14-2011 at 10:16 AM

This is a photo of some of the remaining buildings at Gavilan. Prominent in the foreground is the generator building, and the ore-processing crusher bldg. Going seaward on the beach, one can see the pilings that were once part of the pier, the seaward portion of which has been destroyed by surf and storms.

[Edited on 4-14-2011 by rockman]

[Edited on 4-14-2011 by rockman]

[Edited on 4-14-2011 by rockman]

IMG_2614s.jpg - 49kB

David K - 4-14-2011 at 10:50 AM

Thanks Norm...

David K - 3-12-2019 at 10:07 PM

Wanted to visit the mine in 2016 but the road along the east side of Bahía Concepción was wiped out a few miles short of reaching the end, where the mine road goes over to the other side.

defrag4 - 3-13-2019 at 11:15 AM

ive often wondered what was on the eastern side of BoC, thanks for bump David, will have to make a trip up there to explore and see how it looks nowadays

The Other Side of Bahía Concepción, Sept. 2016

David K - 3-13-2019 at 11:24 AM

Quote: Originally posted by defrag4  
ive often wondered what was on the eastern side of BoC, thanks for bump David, will have to make a trip up there to explore and see how it looks nowadays


Here are the two posts with photos I made following our Baja Extreme 2016 tour:


Yes, there are roads on the peninsula that creates the Bay of Concepcion... ranches, too... and a WWII Manganese mine on the east side of the north end.

Erle Stanley Gardner was curious, but in 1966, he got no answers. He decided it would become a quest! I will write more about it in a future article...

In the November 1991 issue of Baja Explorer Magazine, Bob Vinton (aka Bicycle Bob or Baja Bob) details the road as do Tom and Patti Higginbotham in their 1996 central Baja guidebook, 'Backroad Baja'. So, we weren't flying blind into the unknown. Heck, the AAA Baja map even shows the road, as do the Baja Almanac map books.

Mark at Playa Buenaventura gave us the latest scoop in that the original road around the bottom of the bay at Km. 76 should be avoided due to a mud field near the abandoned government trailer park. Go another mile south or so, to the newer ranch road left (just north of Km. 74).

That is exactly what we did, and deflated our tires for some serious off roading that would last until midnight!

Leaving Highway One, our new off road adventure begins!

These mileages may vary with your odometer, use them only as a general guide. May the Force be with you!

A cattle ranch is passed at 0.4 mile.
At Mile 1.0 we join the old, pre-1970 main Baja road, that comes in from Km. 76 off Mex. 1.
At Mile 3.7 the main route of travel forks left for the bay.
At Mile 4.7 the road closest to the bay from the trailer park comes in from the left.
At Mile 5.6 fork to the left heading north.
At Mile 6.6 the road is next to the bay and going northbound.
At Mile 8.2 a road we used on the return (Ham's Shortcut) meets the coast road.
At Mile 9.9 (just north of three cardón cactus growing side-by-side (and called The Three Musketeers) is the wash/ route to Los Pintados rock art. On the report for tomorrow, learn how we missed finding it and what we found instead!
Around Mile 13, the road goes inland as the coastline curves off to the west.
Mile 15 come close to the bay again briefly, then head towards the mountain.
Mile 16.8, curve left and head back downhill towards the bay.
Mile 19.4, reach a salt flat-like area near Punta Amolares. We camped near here about midnight
Mile 25 End of the road for us, a "grand canyon" gully stops us about 11pm+

We estimate we are about 7-8 miles short of our goal, a sandy beach called either "Santo Domingo" or "Los Hornitos" on maps. The manganese mine road is a mile south of that beach.

We head back south to find a suitable place to set up our tents and get some needed rest. We go back south 5.6 miles and find a big flat near a gravel beach, and all is good at Punta Amolares.














The rest of us went a bit more to the right and had no problem on this mud flat.












David K - 3-13-2019 at 11:26 AM

We are camped on a salt flat-like area not far from the shore of the bay... a narrow line of low shrub is all that is between us and the water, a few hundred feet away. Chef Jesse makes us an egg, bacon, and cheese scramble which we devoured with pleasure! It was a long, tough night drive so we were not in any hurry to get up, and the breakfast was greatly appreciated. My passenger, Pat, likes fresh-brewed coffee and I have my camp stove set up each morning for him to percolate a pot. He has brought Starbucks, and it was quite good even for me as a not so big coffee drinker.

We all walk to the shore and Nick goes snorkeling in the warm water. A puffer fish calmly swims to us (see it in Ham's video). We are finally heading back south at 12:45pm heading back. I should mention that the road north of Amorales (where we camped) is very overgrown and not been used in ages except perhaps for motorcycles! All of us got tons of "Baja pin stripes" last night! In the video, you can see the brush lit by Ham's amber lamps that we drove through, twice. [I got my truck 'clayed' in a detail job two days ago to remove the scratches. Only one was too deep to rub out.]

In my notes, I note that we passed through a fence gate 4.8 miles southbound from camp at 1:21 pm (closing it after we all pass through, of course). We pass a Ford Courier or Ranger truck coming north on the road driven by a rancher, friendly waves are exchanged... and we admire that his truck is 2WD and travels frequently on what we would call a 4WD only road... LOL!

We reach the Arroyo los Pintados 'road' at Mile 10.4 from camp... and there are no tracks, just the arroyo north of the Three Musketeer cardón cacti.

There is a fork in the wash in 0.7 mile and I take the left branch (which was correct for the painted cliff), but the wash route becomes difficult and we turn around after 0.4 mile and head for the right branch... and sure enough I see tire ruts, so we think we are on the correct route. I did not have the GPS for the painted cliff, and was just winging it. Where we ended up going was fascinating and proves that in Baja, all roads go someplace interesting!

Well, the right branch road climbs out of the arroyo and there is a steep down-and-up gully. Nick is lead rig and it takes him a few tries... we toss in some rocks to help us bigger vehicles not bottom-out the rear end. We drop into another arroyo (Tres Marías) and go up it and soon are in a running stream! I love seeing water in the desert and it shows you (if you get away from main roads and into the backcountry) how the Indians could survive in an otherwise waterless land.

Where the canyon narrows and further driving is halted we see what looks like a man-hole plate on top of a well, a few feet higher than the arroyo floor. There is a concrete foundation on the side of the arroyo and just ahead is a side ravine (that the water is coming from) with a fence along the side of the slope... very odd? We walk to see where the water is pouring out of solid rock and it is an amazing place (to me)!

Investigating the concrete foundation, we read it is from 'Pancho Arce, June 14, 2001' and this is (was) 'Rancho Tres Marías'. We are about 4 miles from the bay shore road (it seems a lot longer).

Coming back, Ham spots an old road that will allow us to avoid the deep gully and we turn left out of Arroyo Tres Marías and cross over to Arroyo Luis (on the Almanac map). Ham had spent weeks downloading GoogleEarth images of the area of Baja we hoped to see and had a screen in his FJ with the GPS of his truck and that is how he found the cut across road! We reached the bay shore road about 5 miles from Rancho Tres Marías site. We were back at Highway One in 7.2 more miles, on the same road we took the day before.

Before I get into the next part of Day 6 (Campo La Perla), here are maps and photos...

The beach at Punta Amolares:





Looking across the bay:





Our camp:



A surprise INSIDE my truck!!!



Jesse's Land Cruiser:



One more walk to the water...





Our camp from the near the water...



The drive back south...





Big lizard...







Osprey on cardón:



Arroyo Tres Marías:


















Pat on the foundation.



MAPS:

Ham's GPS track. Note the short left fork, which was the correct direction for Los Pintados.


I traced the roads on GE, where we returned to the bay shore road was just south of the road I traced.


Red arrows for drive in and blue for drive out.

Geo_Skip - 3-13-2019 at 11:27 AM

Thanks rockman for your accurate info.
Manganese was used to harden steel. Not all steel needs hardening (becomes brittle) but in war many alloys are used.

In fact manganese ore deposits are not especially rare. A manganese mine operated in WWII in Sausalito, California in the Bay Area.

defrag4 - 3-13-2019 at 11:57 AM

Quote: Originally posted by David K  
We are camped on a salt flat-like area not far from the shore of the bay... a narrow line of low shrub is all that is between us and the water, a few hundred feet away. Chef Jesse makes us an egg, bacon, and cheese scramble which we devoured with pleasure! It was a long, tough night drive so we were not in any hurry to get up, and the breakfast was greatly appreciated. My passenger, Pat, likes fresh-brewed coffee and I have my camp stove set up each morning for him to percolate a pot. He has brought Starbucks, and it was quite good even for me as a not so big coffee drinker.

We all walk to the shore and Nick goes snorkeling in the warm water. A puffer fish calmly swims to us (see it in Ham's video). We are finally heading back south at 12:45pm heading back. I should mention that the road north of Amorales (where we camped) is very overgrown and not been used in ages except perhaps for motorcycles! All of us got tons of "Baja pin stripes" last night! In the video, you can see the brush lit by Ham's amber lamps that we drove through, twice. [I got my truck 'clayed' in a detail job two days ago to remove the scratches. Only one was too deep to rub out.]

In my notes, I note that we passed through a fence gate 4.8 miles southbound from camp at 1:21 pm (closing it after we all pass through, of course). We pass a Ford Courier or Ranger truck coming north on the road driven by a rancher, friendly waves are exchanged... and we admire that his truck is 2WD and travels frequently on what we would call a 4WD only road... LOL!

We reach the Arroyo los Pintados 'road' at Mile 10.4 from camp... and there are no tracks, just the arroyo north of the Three Musketeer cardón cacti.

There is a fork in the wash in 0.7 mile and I take the left branch (which was correct for the painted cliff), but the wash route becomes difficult and we turn around after 0.4 mile and head for the right branch... and sure enough I see tire ruts, so we think we are on the correct route. I did not have the GPS for the painted cliff, and was just winging it. Where we ended up going was fascinating and proves that in Baja, all roads go someplace interesting!

Well, the right branch road climbs out of the arroyo and there is a steep down-and-up gully. Nick is lead rig and it takes him a few tries... we toss in some rocks to help us bigger vehicles not bottom-out the rear end. We drop into another arroyo (Tres Marías) and go up it and soon are in a running stream! I love seeing water in the desert and it shows you (if you get away from main roads and into the backcountry) how the Indians could survive in an otherwise waterless land.

Where the canyon narrows and further driving is halted we see what looks like a man-hole plate on top of a well, a few feet higher than the arroyo floor. There is a concrete foundation on the side of the arroyo and just ahead is a side ravine (that the water is coming from) with a fence along the side of the slope... very odd? We walk to see where the water is pouring out of solid rock and it is an amazing place (to me)!

Investigating the concrete foundation, we read it is from 'Pancho Arce, June 14, 2001' and this is (was) 'Rancho Tres Marías'. We are about 4 miles from the bay shore road (it seems a lot longer).

Coming back, Ham spots an old road that will allow us to avoid the deep gully and we turn left out of Arroyo Tres Marías and cross over to Arroyo Luis (on the Almanac map). Ham had spent weeks downloading GoogleEarth images of the area of Baja we hoped to see and had a screen in his FJ with the GPS of his truck and that is how he found the cut across road! We reached the bay shore road about 5 miles from Rancho Tres Marías site. We were back at Highway One in 7.2 more miles, on the same road we took the day before.

Before I get into the next part of Day 6 (Campo La Perla), here are maps and photos...

The beach at Punta Amolares:



looks like a fun trip to some beautiful remote spots, how did that 4runner get out of the mudhole haha, those salty mudpits can suck!

David K - 3-13-2019 at 12:46 PM

We gave him a pull. It was just too aggressive a crossing point. The rest of us drove around easily.

[Edited on 3-13-2019 by David K]