Unless you have a boat or can swim really well, you won't be able to get to the posted coordinates. And if you get there, you will find no cache.
Finding the real coordinates of the cache will require a little bit of research. All answers can be found on the Internet.
All caches are located on an easily walkable power line trail. Depending on the weather, rubber boots may be required on a couple parts of the trail.
To find the coordinates for this cache, use the following format:
N 47o AB.CDE
W 052o GH.JKL
All according to the Wikipedia entry for Trumpet:
AB = Friedrich Bluhmel and Heinrich Stolzel made a joint patent application for the box valve in 18_ _. Add 16 to the number.
C = Bore sizes generally range from 0.43_ to 0.472 inches.
DE = Trumpets are among the oldest musical instruments, dating back to at least 1_ _0 B.C. Add 5 to the number.
GH = The most common type of trumpet is a transposing instrument with a tubing length of 1_ _ cm.
JK = In 18_ _, Francois Dauverne became the first musician to use the new F three-valved trumpet in public performance. Add 2 to the number.
L = Adolphe "Bud" Herseth was with the Chicago Symphony Orchestra for 5_ years.
Cache is a pill bottle containing only a log. Bring your own pen.
You can check your answers for this puzzle on GeoChecker.com.