Deep Thought Mystery Cache

This is a Project dgreno cache.

The cache is not at the listed location. Solve the puzzle below to obtain the actual location. And yes, the terrain, difficulty, and attributes are correct.

Deep Thought is the second most powerful computer of all time and space.

Use the answer it gave to decrypt the following stream-cipher-encrypted message. Because I am very, very nice, I will tell you how the message begins.

It begins with the word "CONGRATULATIONS."

Here is the encrypted message, in all its hexadecimal glory:

69 1B 30 EF 80 BD 72 05 36 E5 9A B1 6D 02 25 8E 
C0 FE 47 27 07 BC AE 91 6C 21 4E FC A7 8F 64 39 
1A E0 DB 8C 32 48 0E F9 C9 C4 63 5D 11 FF D7 87 
6F 14 3D E7 C0 AE 63 53 2E E8 D7 F4 22 5F 3F EE 
C9 B1 DE 51 3D 09 86 A3 9F 41 23 58 D6 A3 D6 42 
2F 54 EC AD 93 78 2F 1E FD E4 87 6C 6C 4C B6 94 
82 71 34 09 F1 C8 93 71 56 44 ED D7 8D 7E 52 09 
E4 D5 AA 6D 41 7C E9 D6 FA 70 46 3D A2 CF B9 6E 
5E 35 17 C6 B7 8E 06 31 08 C1 F4 F2 28 02 56 93 
FD D4 2D 7E 5C AC F3 C8 36 64 39 B8 F3 DE 27 60 
5E A7 90 DD 20 0F 6C 9A F2 8B 79 5D 14 E9 C4 CC 
2A 47 37 E5 C2 B0 7F 10 32 E5 D8 B1 6C 4B 76 F4 
C2 B1 8D 4D 72 1F C9 BF 88 40 27 16 C3 B8 93 53 
6A 1D ED E8 9E 75 2D 15 F6 BD CE 6C 2D 4C F4 A5 
CA 7D 50 1B E7 DA 80 79 59 0D EB D6 96 2C 50 0F 
F8 94 AC 6D 46 2E EF D5 AC 65 42 52 ED CA F6 74 
42 31 5E CB BD 92 52 31 13 CA AB 8A 02 2D 18 C4 
EA 9D 6A 3B 52 FF A9 9E 6E 21 00 EC B1 C2 36 60 
2B F0 DA 81 66 55 09 FE DB 88 2E 51 0C EA D9 92 
67 55 2A E1 DD B2 26 44 32 E5 DA F8 6B 5F 76 F6 
C3 A0 9F 44 72 1A C9 A2 DA 50 26 19 D6 C6 86 55 
38 04 F1 BB 97 3C 2F 03 BA A5 98 79 2B 00 F7 A2 
86 71 1E 01 FC 9C 92 78 5F 44 E8 D7 8E 60 59 17 
E3 DA B9 28 54 35 EA D5 E0 0E 24 30 F6 D8 A6 3A 
05 7B 09 DF A5 D2 40 39 00 DE B7 95 43 2B 1F C3 
E4 9A 7B 3C 5D DB A3 9F 79 25 0D F0 AB 82 71 6F 
23 FA D8 87 3D 78 03 F5 CA B0 66 57 17 EB DE 94 
24 44 3A EE B8 D6 52 58 33 F7 8E BE 6B 40 33 A0 
C3 A7 DE 4D 3C 1F D4 A9 8A 50 2B 1C 8C EC D6 74 
22 11 BE AC 97 7F 34 09 EA B0 87 77 2C 4C FD A5 
93 34 57 1B B2 CE 8F 77 52 10 AE D1 8C 2C 50 12 
E5 DA AA 28 5D 3A A6 C9 B5 71 00 

A few notes:

1. Please do not seek the cache until you have solved all the puzzles.
2. Please do not post any spoiler information about the cache location or the method of retrieval in your log.
3. Please retrieve and replace the cache carefully.
4. Please read the disclaimer below.

I know there is boilerplate on all the cache pages, but just so you are sure:

Serious injury or death could result from hunting this cache. Specialized equipment and/or training will be required to retrieve the container. If you are in any way hesitant about your ability to retrieve it safely, do not proceed! You seek this cache at your own risk.