I found a live hand grenade today in Golden Gate Park...

mr_larry

Hero Member
Jun 22, 2010
504
169
Northern California
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Detector(s) used
Minelab Explorer SE Pro
Primary Interest:
Metal Detecting
**UPDATED**
I went back yesterday and found some fragments of the grenade. I also inserted the photos into the text so that it reads a little better!


Here is the news clip recorded from my tv:



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okay...
So I began my day driving by some sidewalk tear-out work I have been hitting but the guys were working on newly developed land. I continued on to a park I wanted to hit but there were a ton of pre-schoolers on the field. I kept driving and went by Baker Beach. There were a ton of volunteers picking up trash. Next stop: Golden Gate Park.

I was driving around looking for any signs of recent work but didn't see anything. I did see massive piles of mulch stacked up at the Polo Fields.
e13980.gif


Next thing I knew I was at a spot where I met up with Chris (Nicasian), MT and SF Mike last Wednesday. I pulled over and parked and it looked to me like they had cleared a little more brush away from a homeless encampment that they have been cleaning up. I decided to swing on it.

There is a bunch of iron in this place but MT and SF Mike have pulled some silver out of there. I pulled up a big metal plate and found this underneath it. It is a Bromo bottle and there are no chips or cracks in it. Very pretty bottle:
bromo1.jpg

I wasn't there but 20 minutes, and about two minutes after the Bromo bottle I get a signal that sounds interesting enough for me to dig. Kinda nulling out but a squeek of a high tone in there. I grab the Lesche and carve a plug even though the dirt is pretty loose. It is held together by small roots.

I pull the loose plug out and plunge my hands into the hole to pull out the rest of the dirt and I grab on to a large heavy object. As any of us would do, I hold the object in my left hand and start brushing away the dirt with my right. Mind you I am on my knees. After about 5-10 seconds of vigorous rubbing, I see the dimples in the grenade. I dropped the thing on the ground and dropped my headphones and hauled ass up the hill to get away from it. As I am running up the hill I see a park gardener driving by and I start yelling at him. He stops and I tell him the story. He comes down and looks at it and says, "Yeah, that looks like a grenade." He gets his boss to come down and his boss says, "Definitely a grenade." He gets on his phone and calls the cops.

This was the first picture I took while waiting for the boss gardener to come down. In the clear area just right of center. I didn't want to get too close:
grenade far1.jpg

After about fifteen minutes with it not blowing up I came in close for this photo:
Grenade1.jpg Grenade2.jpg

e park guys were fantastic by the way. They know of us, don't mind us at all, and they are funny guys.

Next the first cop shows up, looks at it and says, "Yep, that is a hand grenade." He gets on the radio and asks whoever how far everyone should stand back and they say 50 feet. He starts putting up crime scene tape. Here is a photo of the tape extending down to the road. All I can hear is sirens in every direction.
crimescenetape1.jpg

All of a sudden multiple cop cars start pulling up, fire trucks, an ambulance and a "stringer" for the Channel 2 news. Right after that they close down the street from both ends.

After about 10-15 minutes the bomb squad arrives. The guy in the photo is the park supervisor who has been working on clearing out that homeless encampment.
bombsquad1.jpg

The bomb squad guys start asking me a bunch of questions about the grenade and I say, "Would you like to see a picture?" I show them the close up photo and he says, "Oh yeah, That's a Mark II grenade."

The next hour or two goes by really slowly. Earlier the stringer guy had tried to talk to me and I blew him off. We were the only two civilians on the scene so I went over to talk to him and he says he is with KTVU channel 2. Since that is the news I watch every day I tell him I'll give him a quick statement.

They bust out the robot (I have video of this thing) and then I have to go over to the guy controlling the robot to help him find it. We get results in about five minutes. Now the robot is parked directly in front of the grenade. Next, the other bomb squad guy, the same guy who eventually puts on the suit to place the explosives, this guy goes up with a shovel and digs a big hole about ten feet away from the grenade. Although they told me to back off at this point, I think they had the robot pick up the grenade and drop it into the hole the guy dug.

More time passes. The lead bomb guy is on the radio with headquarters and they need to clear the area. They call in the motor bikes and the explosives. The explosives arrive with the motorcycle team and an FBI guy. The explosives arrive in the back of this pickup truck in a container in back. The explosives do not travel with the bomb squad.
Cavalry1.jpg explosivesarrive1.jpg

After the motorcycle guys clear the area, the guy suits up in the bomb suit and drags some cable in his right hand from the command post all the way to the grenade.
brave man1.jpg

Meanwhile, my car is parked about 75 feet from where this thing is gonna blow. You can see it way down on the left. The grenade is across the street and maybe 75 feet from the road.
lonely car1.jpg

Up until this point I have been standing around on the sidewalk about 100 yards away from the grenade. As they are getting ready to detonate the thing, they put me into the Park Patrol car with the head of the GGP park patrol and his partner. They have their police radio on. The guy in the bomb suit comes back. Over the radio they ask everyone to turn on their sirens. Sirens are going off all around me. Next thing I hear is "Fire in the hole" repeated three times. Immediately after that, BOOM!! It was loud! Dirt shot up straight in the air about 40 feet. As I'm still sitting in the car with the police radio, dispatchers start saying. "A caller called in about an explosion in Golden Gate Park."

So after they blow the thing up a cop drives up to where we are parked and he tells me the bomb technician guy wants to talk to me. I get out of the car. He asks me to tell him my story again. When he hears the part where I dropped the grenade on the ground his eyes got big and he says, "You dropped the grenade?" He proceeds to tell me it was definitely a live grenade. Next time, don't pick up a live grenade, etc. He also asked me if I heard any other signals that could have been grenades. "Did you hear anything else that sounded like this one did?"
I explain to the guy that it gave off a crappy signal and that there are signals every time you swing the coil. I kept trying to explain to the guy that I wouldn't have picked it up if I knew it was a grenade.

That's my story and I'm sticking to it!

Sorry I don't know how to insert the photos into the text so that the pictures have more context.

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Updated:
I went back to the spot where they blew up the grenade and I recovered some fragments. See the picture below:
fragments2.jpg
 

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Upvote 26
I was a private back in 2004-ish.

We were out in an old impact area on Ft. Hood on a month long field problem that October. It was cold as hell, raining, and I had been up for 20 hours.

Me and a couple of buddies where smoking a cigarette and I looked down and saw a old mortar laying in the grass. It was clearly marked "T.P. Mod 1". I was the only one that knew this.

A few minutes later this rather incompetent E7 came over screaming about "putting out those cigarettes and getting back to work". I picked up the mortar and pitched it towards him, and it landed perfectly between his boots.

I did push-ups and front-back-go's until I puked all over myself. Twice.

Best part?
Fast forward three years or so. I walk into my E5 field board in Iraq. Same E7, now the HHC 1SG.

Absolutely Brutal.
 

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I'm glad you didn't get blown up. I bet some vet from Vietnam brought it back since alot of people returned to that area after. If that would have went off and killed you that been it for MDing in SF.
 

Great story and wonderful pictures.

Did the cops refill their hole?
 

Good drills Larry! and to everyone on the site, Larry did exactly what should have been done, if you suspect you have uncovered UXO then move to a safe location, call the police and wait for them and keep anyone else away from the area, it is the same in the U.K. whenever something is unearthed be it by people with detectors or by construction workers, the police in turn will call the military who will respond by sending the Bomb Disposal unit from the relevant side of the military (there is a list of responsibilities for each arm of the service i.e. anything below the low water tide mark is the Navy's, anything above (besides torpedoes) is the Army's unless on an AirForce base etc;

I am a former British Bomb Disposal Engineer (having worked for several EOD/Mine clearance companies over the years I am currently still carrying out large ordnance demolitions weekly with a civilian company), one of my last clearance jobs in the army was an old Mills Bomb Grenade range in the East of the country, where we found several thousand and destroyed all the ones we deemed moveable together at the end of each week, some we would destroy in situ (or BiP as you guys across the pond call it "Blow in Place") where we deemed the item to be unmoveable due to certain safety features either missing or too badly corroded. Remember that during WWI and WWII both in the US and in Great Britain millions of young men would live and train in temporary locations due to the sheer numbers of men involved, as a detectorist you should always expect to some day come across such an item in towns and cities that have a history of soldiers training and deploying abroad. Never pick anything up that you suspect might be Ordnance and call the police, it is better to ID something incorrectly as Ordnance than to ignore an item you think "might" be ordnance and not tell anybody, only for a child or someone unsuspecting to find it later and injure themselves. As EOD we would get called out to many items by other military units, that turned out to be respirator canisters or old rusty cans etc; but we would always tell that particular unit they did the right thing as they suspected it was a mine or UXO.

It is a big myth that these items are getting safer as the years go on, British Bombs for instance found on mainland Europe from WWII some contained a delay element, which was a little phial of acetone, which upon impact was designed to break and the acetone would leak onto a celluloid disc, depending on the number of celluloid discs would determine the time of delay as the acetone dissolved the disc/s, today some of the phials will still be intact but the slightest of movement can lead to the phial breaking, dissolving the celluloid disc/s and releasing the striker, in recent years a very experienced civilian German Bomb Disposal team were killed dealing with one of these, it was their 700th bomb over the years!

Well Done Larry for doing the correct thing and posting the story and pictures as a warning, and maybe a reminder to everyone to be aware of Unexploded Ordnance wherever you may be detecting. Nice One!
 

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Cory, I have friends at the moment working for a company called ECC out in Guam, they are former Military EOD Techs and some are UXO Techs trained at Texas A & M, they have been doing what we call banksmen jobs i.e. watching everything that construction workers are excavating for any signs of UXO, if you want I can put you in contact with one of them who may know if they have plans/maps of the Islands as to where the most likely areas are.
Those things scarf the hell out of me. I live in Guam and there are some 8-10,000 UXO's around our 240 square mile island. I haven't started digging yet, but really want to. Just paranoid about going out into the sticks and digging into these things. Short story, 2 guys were out in the hills and found a 500 pound bomb. They wanted to get the explosives out of it to go fishing. They opened it up with a hacksaw. Long story short, they never made it fishing. Not sure if it's true or not, but sure does make you think. The odds of finding something that can go boom here are fairly high. Anyone else have any encounters with live ammo? Really would like to talk to the EOD guys and see if they have maps of the "dangerous" areas so I know to stay clear.


Cory
 

Cory, I have friends at the moment working for a company called ECC out in Guam, they are former Military EOD Techs and some are UXO Techs trained at Texas A & M, they have been doing what we call banksmen jobs i.e. watching everything that construction workers are excavating for any signs of UXO, if you want I can put you in contact with one of them who may know if they have plans/maps of the Islands as to where the most likely areas are.

Truffles, that would be awesome to have some probability maps. I believe that that can be requested if you know where to request them from. Military EOD are the one that do all the disposals out here I believe, if not 100% then pretty close. I'm guessing ECC works pretty close with these guys. Would appreciate a contact over there. Can never be too safe around that stuff.


Cory
 

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