One key to finding Bumble!'s cache is finding all the clues he left to the cache's whereabouts. Bumble! set loose three bugs on the world, all of the traveling variety. All of them happen to deal with musical Intervals within the Harmonic Series
------- ----- --- Frisbee, --th Harmonic Frisbee, and The Dream Chord Frisbee
Two of them have two numbers representing ratio of frequencies on them. One of them has three numbers. The ratios need to be converted to cents and rounded to the nearest whole number. If you have collected or figured out the numbers on the bugs, after conversion you should now have three three digit numbers. The lowest set of numbers is "A", the middle set "B", and the highest number "C".

The difference in cents rounded to the nearest whole number between (2 / 1)^7 & (3 / 2)^12" is "D"
The number of letters in the two word name of the sequence Bumble! is hiding next to is "E"
So what do these numbers all mean, besides Bumble!'s obsession with prime numbers?
Its all pretty simple: Plugging these numbers in will lead you to the first stage of six, the sixth being the final which is going to be found using a projection from stage five. At each stage is a small green bison tube containing the coords to the next stage or in the case of stage five the needed info to do the projection to the final.
First Stage Location:
N 42 D+2.C +(Ex3-4)
W 71 E-4.B-A+6
But your work isn't done there!
Bumble! is pretty protective of his cache and set up a intricate locking mechanism to protect it. You will need the right combo to open it up.
Luckily he left clues around so you can retrieve that information as well. He left three other cache "clues" in the Fells; Natural Enviornment?, House Of Mirrors, and Cross Rocky Oreos. They aren't placed at some random spots...they make up three sides of an equal parallelogram. Using their coords you need to plot the missing fourth vertex. Remember there are three possible fourth vertex locations...each will have a piece of the combo.
How about the order of the combo numbers you may be asking. The "clue" cache nearest each of the vertex points will have a number written on their respective logs. That number will indicate the order of the combo # you found. The smallest # will go with the smallest combo #, highest log # with highest combo # etc. After that is figured out solve this simple puzzle to solve the order."IV VIV". Unfortunately, or I guess luckily for you, the numbers and logs have been replaced a few times & I've decided to just give away the "clue" cache #'s. Check out hint for the info.
Yes, Bumble! is an evil guy... he really is going to make opening his cache a tough job.
Just so there are no cheaters out there who decide to pry open the container or use wire cutters, Bumble! has electrified the container & filled it with venomous snakes & spiders. Ok not really, but instead the combo codes will be serving a dual purpose. They will be needed for opening the lock as well as being used to make a projection from Stage five to the final stage.
Remember this is a 4.5/4.5 for a reason. Each Stage has its own physical or mental challenge. Though some of that rating is based upon a cumulative affect of going through all the "clue caches" as well as the multiple stages to get to the final......the terrain can be challenging especially if wet or icy. There are very steep areas as well as obstacles & tight spaces.So don't be stupid trying to get to my hideout...its not going anywhere & you can always try when the conditions are more ideal. Also beware of deliberate misdirection Bumble! may have left behind. Bumble! is a very honest liar!
A few Nice FTF STF and TTF prizes waiting for those who dare come & try find me! Also made some "I solved and found Bumble!'s Hideout" souvenirs. Please just take one each.... Thanks!
UPDATE OCTOBER 2014 - In case anyone was interested, here were the original answers to the puzzle:
Clues:
Clue A= 267
Clue B= 689
Clue C= 841
Clue D= 23
Clue E= 10