This cache is NOT at the posted coordinates,
solve the puzzle below to find the corrected coordinates.
See Cryptogram University Series 101 CUS 101: Cryptogram Basics for more information on cryptography and this cache series.
CUS 105: Geometric Ciphers will teach you about another type of substitution ciphers that are used in puzzle caches. As you may remember from CUS 101, a substitution cipher replaces characters in a message with other letters, numbers, or symbols. Geometric ciphers are substitution ciphers that exchange letters or numbers with geometric shapes or keys based on geometric shapes. This course will go over several of those geometric ciphers (Pigpen Cipher, Knights Templar Cipher, and Polygon Numerals).
Pigpen Cipher
The Pigpen Cipher (a.k.a. Masonic Cipher, Freemason's Cipher, Rosicrucian Cipher, Napoleon Cipher, and Tic-Tac-Toe Cipher) is a geometric substitution cipher, which exchanges letters for symbols that are fragments of a grid. The Pigpen Cipher has been used for centuries, from Hebrew rabbis to French pirates to the Freemasons. To encrypt a message in Pigpen Cipher, you just use the geometric fragment of the grid from the key that contains the letter you want to use, including the dot for the right half of the key. To decrypt, you just do it in reverse.
Figure 1: Pigpen Cipher Key
The word GEOCACHE in Pigpen Cipher would look like this: 
Knights Templar Cipher
The Knights Templar Cipher is similar to the Pigpen Cipher, but uses a Maltese Cross instead of a grid. The Knights Templar was a Medieval military order that defended Christians on their pilgrimage to the Holy Land and were some of the most skilled fighters during the Crusades. The Maltese Cross was the heraldic crest of the Knights Templar. As with the Pigpen Cipher, to encrypt a message, you just use the geometric fragment of the grid from the key that contains the letter you want to use, including the dot for the bottom half of the key. To decrypt, you just do it in reverse.
Figure 2: Knights Templar Cipher Key
The word GEOCACHE in Knights Templar Cipher would look like this: 
Polygon Numerals
Polygon numerals substitute Latin numerals with shapes that have that specific number of sides and can therefore be used to represent numbers. Physicists and mathematicians would argue that the dot, a circle, and a half moon have an infinite number of sides, but for us normal geocachers these shapes are used to represent numbers. Puzzles could also use pictures of objects that share these various shapes. For example, a basketball could represent the number 1, a stop sign could represent the number 8, etc. It is also fairly common for the number 10 to represent 0, since sometimes it is hard to represent a zero, so keep that in mind when solving puzzles for coordinate numbers.
Figure 3: Polygon Numerals
The CUS 105 Exam:
Decode this geometric substitution cipher to obtain the final coordinates.
