I just got a proper GPS and am just getting into geocaching. This is my first post here. I'm in Northern Utah and the foot of snow on the ground limits a lot of what I can do until spring, but I have found quite a few benchmarks in my area that have not been logged. I like a challenge and would like to be the FTF on some of these and would like to verify several others that haven't been found in many years.
Many benchmarks in my immediate area are along an old railway that is used once per week. I'm a bit confused by some of the terminology. For example, one datasheet reads, "MARK SET IN CONCRETE BASE OF SEMAPHORE NO. 55.5. 7 POLES AND 30 FEET SOUTH OF EAST-WEST DIRT ROAD."
From the other descriptions, I believe "SEMAPHORE" refers to some sort of switching sign or other visual designator. Is this correct?
Others in the very near vicinity reference MILEPOLE 55.5. I assume by "pole" in this sense that it is a mile marker, right? So there is probably a sign or signal at this milepost?
However, the distance of "7 POLES" above doesn't make a lot of sense. It clearly is not 7 miles. It is some measure of distance greater than 30 feet, but probably less than several hundred feet. I found some surveying terminology that said it is the same as a rod - 16.5 feet, but this doesn't seem right in this context. I assume it refers to the distance between the old telephone poles that ran parallel to the tracks, but none of these remain in place along this track. Many of the descriptions in this area use this distance and not knowing it is going to make things difficult.
So how long is a "pole"?