OCATT - METRONYGCS Mystery Cache

'OCATT' stands for
Old
Croton
Aqueduct
Tribute
Trail

This is a tribute trail for all geocachers who live and/or geocache within the confines of Westchester County in the great state of New York! This series spans over 30 miles, from Croton’s Reservoir Dam to NYC’s High Bridge. Please read the following information to ensure a positive experience with your journey.

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All caches are accessible during any season and they are physically located along, but not on, the actual OCA.
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Each geocache in this series was placed with utmost respect to the OCA, nearby home owners, and the potential for muggles.
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The trail is generally a 1.5 (flat/unpaved) terrain, although the listed ratings are adjusted based on how difficult it will be once you break away from it.
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Should you journey the OCA in its entirety, you will be presented with a generous blend of rural, suburban, and urban developments.
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All containers, aside from a select few that happen to be custom fabrications, are micro test tubes. None are simply placed for all to see; every container has been handled with special care, hidden and camouflaged as a traditional geocache.
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If you are looking for a quick P&G numbers crunch like other mega-series runs, this isn't it.
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Should you find difficulty in your search, I have provided a hint to be used at your own discretion for each listing, although you are encouraged to do without it.
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To extract the log from each geocache container, you will need to use a pair of tweezers or needle-nose pliers.
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There may be thorns in some places, as well as the potential for ticks in a few others, so it is recommended to come prepared.
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Everything within the standard Groundspeak Disclaimer applies here.
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This is a very long trail with multiple parking options, so you are on your own for the most part. Depending on the listing I will do my best to advise where exactly to go, although the preferred option is to travel as much of it as you can without driving to each intersection.
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Be sure to check out other caches nearby this trail, as there are many that will be worth your while.
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GOOD LUCK

METRO NEW YORK GEOCACHERS

This tribute, the final in the entire OCATT series, is for all of New York City's geocachers. For the dastardly puzzles and super-urban cache designs, for allowing tourists to cache under the bright lights and locals to seek new quirky corners of the big apple, for finding/placing geocaches both in your realm and outside of the area for others to enjoy, this is for all of you. There is nothing more fitting than placing a puzzle on Manhattan island to immortalize NYC geocaching, so here's a simple one for all to enjoy. Thank you for all of your efforts and hopefully many more to come!

Note: The listed coordinates are for High Bridge. Information for this cache was gathered from a variety of plaques that are set on the ground, between Manhattan and the Bronx. Walk the bridge, and solve for the following:

N 40° 50.ABC
W 073° 56.DEF

You can check your answers for this puzzle on GeoChecker.com.