Chronicles | You Turn Me On Mystery Cache
Chronicles | You Turn Me On
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Difficulty:
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Terrain:
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Size: 
(small)
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The World's First Hydro-Electric Central Power station is the starting point of this cache. That plant came on-line in 1882 and was the first operational central hydro-power plant in the country. There's some dispute about it being the first with that designation or if a plant in New York should have that distinction, but it's generally accepted that this one is - although you will notice that it was later re-designated a bit differently as the first "Edison Hydroelectic System in America".
At the Hydro Station you will need to locate the "assister" which also holds the "key" to finding and opening the final. There are a number of plaques located to the left of the door of the station. The assister is located almost directly "below" those plaques. REMEMBER EXACTLY WHERE YOU FOUND IT.
Your first solve will take you to WP2 where you will need to get information to make your second solve. That solve will take you to WP3, another historic plaque where you will be able to make the the final solve.
Your final coordinates will take you to within 150' of the final cache. Before you get to the final coordinates, you can start using the assister and you should see the light. Because this is a night cache, I didn't want to take you right to it and you'll understand why when you get there. At the final you may feel a little exposed, but the cache is on public property. If anyone asks from the private side, just tell them Jeanne sent ya.
Once you have finished with the cache, you will need to return to the Station to replace the "assister" for the next cache hunter. PLEASE RETURN TO THE EXACT SPOT YOU FIND IT, so it will last for a long time.
Solve Number One: There are a number of plaques on the station. Find the difference between the year that it was designated as a National Historic Engineering Landmark and the year that it was marked by the Daughters of the American Revolution. Call that number "a". To find RP2, subtract (a*5) from given North and add(a*24) to given West.
Solve Number Two: There is a date on this maker. Add the month, day and year to get a single number. Call the last 3 digits of that number "b". At RP1 there was some information about the 20" turbine which rotated at a stated PRM, call that "c". To find RP3, subtract (2*c) from the adjusted North and add {b-(2*c)} to the adjusted West.
Solve Number Three: At your last marker, there is a 3-digit number associated with those who erected it. Call that "d". To get the final cords, and d to the re-adjusted North and subtract d from the re-adjusted West.
You are about to embark on one of the most historic geocaches in the Valley, so be prepared to soak in the history and try to imagine yourself living at the dawn of the 20th century and watching the world light up before your very eyes.
UPDATE: 9.1.08 Correction in puzzle formula (blue) that should have been there from the start.
UPDATE: 11.1.08 More clarifications in blue to address some iffy calculations.
UPDATE: 9.14.15 Solution never found at original final location, so the final for this has become an offset. At your final solve, you'll be presented with coordinates for the offset final.
Additional Hints
(No hints available.)