Realtime Content, Benchmarks
Angel
There are Angels among us, but you have to find the right one!
The decision to recover ANGEL was based on a thread in the GC benchmark hunting forum about benchmarks that have many "found it" logs that are wrong. People were "finding" a benchmark at Bright Angel Point but it was not the correct benchmark.
http://www.geocaching.com/mark/details.aspx?PID=GQ0240 (link to benchmark page)
Before starting out to recover this benchmark we reviewed the data sheet to determine what we needed to do. It has 'adjusted' coordinates so after checking with a map it was obvious that the disk was not at Bright Angle Point. The data sheet also said that the benchmark was located near the NPS headquarters building and right next to a 'tall' tree. It said there were 2 RMs (reference marks) for this benchmark. They are copper nails in blazes on 2 of the nearby trees. 
Knowing what we needed to find we headed to the North Rim of the Grand Canyon. Following our GPSr we ended up on a parking lot for the Admin building. We got out of our vehicle and started off to where the GPSr said the disk should be located. It led us to a huge tree that had a metal ladder going up the side of it. The tree had broken off and the upper part was laying close to where the GPSr said the benchmark should be. The datasheet said that the disk was directly under the tower tree. It didn't mention how far from the tree or on which side of the tree the disk was located.

At this point we looked for the RMs to help locate the benchmark. We quickly spotted RM2 (Which was in very good condition). This was the first blaze and copper nail that we had found. We then looked for RM1 and found the blaze, but the copper nail had been removed
.

Now came the hard part, finding the actual disk and verifying what was stamped on it. Using a large screwdriver we began probing the ground all around the tree and then concentrating on the side where the upper part of the tree had fallen. The data sheet described the tree as leaning so we figure that if the top had broken off and fell to the ground it would fall on the side where it had been leaning. We could not find anything with the screwdriver. After a few minutes we decided to ask for permission to use a metal detector to locate the disk. We figured it was a long shot getting permission to use the metal detector, but after driving 150 miles to find this one we had to try.
John went into the main building and met Ranger Bob and told him what we were trying to find and that we would like to use a metal detector to complete the find. Ranger Bob didn't know there was a benchmark just out his backdoor, but gave his approval and came along to help find it. It only took a few minutes and the detector was sounding off and a quick probe with the screwdriver revealed the location. Moving the surface debris revealed the benchmark that hadn't been recovered since it was placed in 1956.


We took our pictures and thanked Ranger Bob and headed for the next benchmark.
Comments(1):
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Woohoo!
Monday, June 08, 2009 Ed