Benchmark Website

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Handyman-N-Fam
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Benchmark Website

Postby Handyman-N-Fam » Sun 2009-10-25, 18:35:23

I did a search, and couldn't find this on NWOGEO. It is a site with a map that shows benchmarks on a map. It is an interesting feature to compliment the info from gc.com.

Benchmark Website

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GeoFlint13
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Re: Benchmark Website

Postby GeoFlint13 » Sun 2009-10-25, 21:04:48

I've always wished that GC had a "map it" feature for benchmarks, so this is really cool. Thanks Russ.
Good Luck & Happy Hunting!

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Re: Benchmark Website

Postby GizmoGuy411 » Sun 2009-10-25, 23:51:35

Thanks for the post! I wonder if Grizz knows about this?

Somewhere we do have a link to the government site, but this one is much easier to use too.
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ScouterJoe
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Re: Benchmark Website

Postby ScouterJoe » Mon 2009-10-26, 01:12:41

Very well done. I was wondering if Grizz knew about this too.
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GrizzFlyer
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Re: Benchmark Website

Postby GrizzFlyer » Mon 2009-10-26, 15:00:50

Its a very good tool for getting an overall view of benchmarks in an area. I use it now and then, but I have never figured out how to call up an individual BM by PID or otherwise. Can use it to plot out RM's and AZ MK's that don't appear on the map if they don't have their own PID, using the datasheet for the main station. If it had a method that would tell the user which ones he's recovered, that would be extremely useful.
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cheechgang
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Re: Benchmark Website

Postby cheechgang » Mon 2009-10-26, 15:48:55

BM PID RM AZ MK

and I thought I had problems finding my way around in Egypt...
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GrizzFlyer
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Re: Benchmark Website

Postby GrizzFlyer » Wed 2009-10-28, 23:26:26

BM = BenchMark
PID = Point ID (unique number given to every listed benchmark)
RM = Reference Mark
AZ MK = Azimuth Mark

Groundspeak Benchmarking Introduction
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Mighty_Mo
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Re: Benchmark Website

Postby Mighty_Mo » Thu 2009-10-29, 01:27:33

When T-Hunter and I were in Indiana last weekend I found this in a tree. I remember hearing something about "Tree Marks". I wonder if it is one.
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GrizzFlyer
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Re: Benchmark Website

Postby GrizzFlyer » Thu 2009-10-29, 02:20:52

Sort of. Often called a "nail and a shiner". Usually used as a reference to locate a real benchmark close by, giving a direction and distance from the shiner. I'm guessing the B L N on the shiner is probably a survey company that placed the mark.

All kinds of tree marks. Another used-to-be-common one used long ago is a blaze, where they hacked off some of the bark of a nearby tree. Sometimes just a spike driven into a tree near the base for a reference. Pretty hard to find some of these, trees grow and cover over spikes and blazes.

Modern surveyors don't establish these types of references. With GPS, even regular reference marks aren't often used once the benchmark is recovered with modern GPS equipment.

The "tree mark" we spoke of at the BG meeting was a "bearing tree", which had a regular metal sign about 6" x 8" attached to it, with distance and bearing to a mark stamped on it. Only saw one personally, in New Hampshire.
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Mighty_Mo
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Re: Benchmark Website

Postby Mighty_Mo » Thu 2009-10-29, 03:55:40

Thanks Grizz,

There are 3 letters in the center MAG for what ever that is worth. I just thought it was interesting
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2trux
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Re: Benchmark Website

Postby 2trux » Thu 2009-10-29, 12:20:48

Thanks for the link. Using it, I discovered that I pass within 200' of a benchmark several times a day. I can see it from the garage I park in.

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SuchaNana
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Re: Benchmark Website

Postby SuchaNana » Fri 2009-11-06, 18:35:29

Handyman-N-Fam- now this is SUCHANINTERESTING topic thread...checking out the site gives me more info...thanks all for your input...i'm gonna pass geo 101 soon now!!...
SuchaNana...Life is STILL an Adventure...

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Keger8
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Re: Benchmark Website

Postby Keger8 » Sun 2009-12-27, 15:02:53

I just checked that website and it turns out there is a benchmark about 80 feet from my house!!! Out in the middle of nowhere i didnt expect to see anything!
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ScouterJoe
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Re: Benchmark Website

Postby ScouterJoe » Sun 2009-12-27, 15:05:32

well go it!
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Keger8
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Re: Benchmark Website

Postby Keger8 » Sun 2009-12-27, 22:32:32

I will get it as soon as it stops snowing! It's really comin down here!
KEGER8


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