The first stage of this cache is at the coordinates given. When you arrive there, you'll see a red sign with two large white numbers on it, easily visible from your vehicle. You'll need those two digits to locate the final stage of the cache. The final stage itself is a bison tube with only log pages, so bring a pencil. When you arrive at the final stage, you can pretty much park anywhere along this quiet stretch of road. There's no bushwhacking required to find the cache. In fact, it's within one step of the roadway. Because the math used at the first stage is fairly basic, traffic is very light at the second stage, and the cache itself is easily accessible, I'm calling this cache kid friendly.
Below are the partial coordinates for the final stage. Use the two digits from the sign at stage 1 to answer the questions below. No calculator required. Plug in the answers to the questions in place of the letters, and you're on your way!
N 42 52.ABC
W 084 08.DEF
A = Take the square root of the second digit. Double it. Plug the answer in here.
B = Subract the first digit from the second digit. Double it. Plug the answer in here.
C = Subract the first digit from the second digit. Divide by two. Plug the answer in here.
D = Find the square root of the second digit. Subtract the answer for letter C from it. Plug the answer in here.
E = Add the first digit to the second digit. Plug the second digit of the answer in here.
F = Square the first digit. Plug the second digit of the result in here.
Congrats to mizdeeds for FTF!