Concrete Markers (Inserts?)(Inlays?)

   / Concrete Markers (Inserts?)(Inlays?) #1  

CurlyDave

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Location
Grants Pass, OR
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Every once in a while I will see a metal marker, usually brass or bronze, set into a horizontal concrete surface. Frequently they will have the points of the compass (North, East, South, West) on them.

What are these called? :confused:

I am putting in a large flagpole and a concrete walkway around it and would like to include one of these in the walkway, but don't know the official name or where to buy one?
 
   / Concrete Markers (Inserts?)(Inlays?) #2  
Brass survey marker, domed or flat:

brass+survey+marker

Click on Google Shopping to buy some.

Bruce
 
   / Concrete Markers (Inserts?)(Inlays?)
  • Thread Starter
#3  
Thanks, this is very close to what I am looking for, but the one I want has the north, south, east west marks, which none of these have.
 
   / Concrete Markers (Inserts?)(Inlays?) #7  
My grandfather's land had these markers you are talking about, He told me the gov't came through back in the 50's surveying the land and setting these marks.
 
   / Concrete Markers (Inserts?)(Inlays?) #9  

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   / Concrete Markers (Inserts?)(Inlays?) #10  
Camden yards in Baltimore has a cool set up. Every home run hit is cut out of the bricks and a small brass plate is put in with the distance and who hit it. There are some on the sides of buildings.
 
   / Concrete Markers (Inserts?)(Inlays?)
  • Thread Starter
#11  
Thanks to all.

The item I want is a Compass Rose.

Once I got over the sticker shock of the 36" bronze one ($1500-$3600) depending on things I didn't ask, I think the $94, 9" one is going to be fine.
 
   / Concrete Markers (Inserts?)(Inlays?) #14  
If you align to magnetic north, you need to make it pivot. :)

northpole.jpg
 
   / Concrete Markers (Inserts?)(Inlays?)
  • Thread Starter
#15  
Now are you going to set it for true north or magnetic?

I use true north for all all the compass bearings I make for my own use. It will be true north.

Unfortunately, the rural Southern Oregon area DW and I retired to, is full of mouth-breathing, knuckle-dragging Cave Dwellers in the area of land navigation. In most other areas they are fine people and wonderful friends, but if the topic comes up, there is no one else in the county who cares about the difference, or even understands that there might be some practical significance.

In this local area declination is 17 degrees. The people I hunt with will plan 2 to 3 mile hunts on a map and then have no idea why they are never even close to their end point at the finish. I have told them about true vs. magnetic north many times, but they never seem to correlate the difference with the paper map using true north and them walking a bearing which is 17 degrees different than they think.

When I first moved here, nearly 10 years ago the satellite TV people told me the compass bearing their dish needed to look, and I cut down a large tree so it would have a clear view of the sky at that bearing. I used true north. The installer came and used magnetic north to position the dish, which meant that the tree could have remained. Neither he, nor the main office saw any inconsistency with a satellite TV company using magnetic north.
 
   / Concrete Markers (Inserts?)(Inlays?) #16  
My Dad put up his own 9' dish back in the 80's without a compass--he sighted through the pivot points to the north star, and never had an issue with the alignment (lightning frying receivers on the other hand...)
 
   / Concrete Markers (Inserts?)(Inlays?) #19  
I use true north for all all the compass bearings I make for my own use. It will be true north.

Unfortunately, the rural Southern Oregon area DW and I retired to, is full of mouth-breathing, knuckle-dragging Cave Dwellers in the area of land navigation. In most other areas they are fine people and wonderful friends, but if the topic comes up, there is no one else in the county who cares about the difference, or even understands that there might be some practical significance.

In this local area declination is 17 degrees. The people I hunt with will plan 2 to 3 mile hunts on a map and then have no idea why they are never even close to their end point at the finish. I have told them about true vs. magnetic north many times, but they never seem to correlate the difference with the paper map using true north and them walking a bearing which is 17 degrees different than they think.

When I first moved here, nearly 10 years ago the satellite TV people told me the compass bearing their dish needed to look, and I cut down a large tree so it would have a clear view of the sky at that bearing. I used true north. The installer came and used magnetic north to position the dish, which meant that the tree could have remained. Neither he, nor the main office saw any inconsistency with a satellite TV company using magnetic north.

T V Makes Dull Company or True +/- Variation = Magnetic + Delineation = Course
 

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