I dont know if it was military but it was big. It had 2 components. One was placed at a known datum point as a base unit. Then we used a hand held unit to locate the study sites. We were measuring marsh gain and loss..so getting teh exact same location was necessary. I used the hand held during lunch to find the cache. It was cool to see who far off their gps was off compared to our super accurate one.
Hard work digging permanent refernce markers in clay soggy soil. Frigging hot, dirty and miserable job..then it started raining and that made it worse. (Someone remind me again why I am going back to graduate school)
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