Skip to content

Towers I Mystery Cache

This cache has been archived.

mouser_nerdbot: I'm going to have to archive this series; a bunch of the original signs from the pictures have changed or been removed, and at least two of the containers have been vandalized.

More
Hidden : 1/19/2005
Difficulty:
4 out of 5
Terrain:
3 out of 5

Size: Size:   regular (regular)

Join now to view geocache location details. It's free!

Watch

How Geocaching Works

Related Web Page

Please note Use of geocaching.com services is subject to the terms and conditions in our disclaimer.

Geocache Description:

Visit Towers I details at the DGP

A test of your knowledge of coordinate systems, triangle geometry, and the towers of Los Alamos, NM. Actual hiking distance once you know where to go is very short, though there could be a bit of scrambling involved.

This puzzle cache is solved in multiple steps - the coordinates given above are nearby the cache location, but not close enough. To find the correct coordinates of the cache, you must first examine these pictures of three towers: (1) (2) (3)

All three towers are within the city limits of Los Alamos, NM. You do not necessarily have to go to the towers themselves (the third tower is not publically accessible, anyway) but you must determine the location from which the photo was taken.

If you stand at the location where a tower photo was taken, you will be standing next to a sign with some numbers on it. Use your GPS to take a waypoint at each of the signs. Close-up photos of these signs are available here: (1) (2) (3)

Use the numbers on the signs to complete the following information. Note that the close-up images above have been altered, so trying to answer the following questions just using the photos will give you wrong answers. Don't be surprised when you find that the numbers on the signs are different (or there are more numbers on the sign than you see in these images).

The first sign (metal numbers nailed to a wooden pole):
A = The second digit from the top
B = The third digit from the top
C = The sum of all digits

The second sign (the "watersphere" sign):
D = First digit in the contract number
E = Sum of the digits below the word "Greenville" (note that there is an S there, not a 5)
F = Sum of the digits in the year
G = The last digit under the word "Pickling"

The third sign (the yellow stickers):
H = The bottom digit

Now use this information to calculate the following two numbers:
X = (D * H) + A + B
Y = E + F + G - C

Calculate the orthocenter of the triangle whose vertices are the three sign locations (you may assume that the three points and the orthocenter are coplanar). From the orthocenter, go X meters east and Y meters south and you will find the cache.

Bear in mind that because you are combining multiple waypoints when calculating the orthocenter, the errors in your position measurement will be magnified. Your may have to do a bit more searching around than usual.

Good luck and please post no hints.

For use in the field, here is a PDF document containing all six images on one page: PDF (409kB)

Additional Hints (Decrypt)

Gur hfr bs gur HGZ pbbeqvangr flfgrz (vafgrnq bs yngvghqr naq ybatvghqr) jvyy terngyl fvzcyvsl gur pnyphyngvba bs gur begubpragre naq nyfb gur bssfrg qvfgnaprf. Gb haqrefgnaq jung vf zrnag ol "begubpragre," pbafhyg guvf jrocntr: uggc://zngujbeyq.jbysenz.pbz/Begubpragre.ugzy

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)