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Distances and Waypoints on Griggs Reservoir

What are the distances between the various landmarks on Griggs?

I've been very interested for a while in the actual distances between the various landmarks on Griggs to be able to accurately gauge our progress. A few years I purchased a GPS receiver that can pinpoint a position on the earth's surface to less than 5 meters (about half a stroke or 15 feet). A diagram with distances I determined is below ...

Here are the various readings and distances it calculated (all measurements taken about 50 feet off shore proceeding north in order:

GCRA dock (north edge)        ===================================
(N 40/01.091' W 83/05.741')     |    |     |                 |
                               280m  |     |                 |
                                |    |     |                 |
SBC crane (north edge)        ==== 1260m = | =============== | ==
(N 40/01.243' W 83/05.727')     |    |     |                 |
                               980m  |   3320m               |
                                |    |     |                 |
Fishinger Bridge (south edge) ============ | =============== | ==
(N 40/01.770' W 83/05.677')     |          |     |    |      |
                              2070m        |     |    |    5770m
                                |          |     |    |      |
Power Wire (biggest cable)    ================== | = 2550m = | ==
(N 40/02.882' W 83/05.761')                      |    |      |
                                               4510m  |      |
                                                 |    |      |
Hole in The Wall (south end)  ================== | ========= | ==
(N 40/03.144' W 83/05.783')     |                |           |
                              1960m              |           |
                                |                |           |
Hayden Run Bridge (south end) ===================================
(N 40/04.089' W 83/06.396')

If there are other measurements you need taken, let me know and I'll gather it during a practice. I'm now looking at more subtle landmarks that can help in acquiring splits for long pieces. -- Scott Dybiec