In the meantime, here is what you need to complete this multi.
You're looking for 39.ABCD 104.EFGHI.
For ABCD, go to the West Entrance of the tunnel. There you will find two signs for a total of five words. With a = 1 to z = 26, ABCD are as follows:
A: first word, second letter
B: third word, fifth letter
C: second word, fourth letter
D: fourth word, fourth letter
For EFGHI, go to the East Entrance. You're looking for a word in gold and five words (with an ampersand) in white. Using the same a to z conversion, EFGHI are as follows:
E: gold word, eighth letter
F: first white word, second letter plus fourth white word, third letter
G: third white word, first letter
H: second white word, third letter minus fifth white word, third letter
I: gold word, sixth letter
Checksum for ABCDEFGHI is 68.
Original listing
The cache is not at the posted coordinates. What you will find there instead is the entrance to a really cool tunnel. By gathering information from this first stage, you will be able to determine the coordinates for the final stage of this multi-cache.
The cache is located at N 39 AB.CDE W 104 FG.HIJ.
To determine the final coordinates, you must examine the tiles in the tunnel to figure out the answers below:
A = The number of large skateboard dudes in primary colors.
B = The second number on the pole vaulter's shirt.
C = The number on the green basketball player.
D = The total number of baseball diamonds in the tunnel.
E = The number spelled out on the bottom of the skateboard.
F = The number of animals on the Denver Zoo tile.
G = Same as D.
H = Number of letters in the top line of the Academy Art tile.
I = Same as C.
J = The first number on the pole vaulter's shirt. The checksum for A-J is 30.
I want to thank animjason for sponsoring and maintaining this cache, and my dad, fearthefish, for helping me set this up.