Welcome to the Rudy Kraemer Nature Preserve
This is a 75-acre prairie restoration area that includes a half-mile long trail. This self-guided nature trail features eight stops with information about each stop in the trail guide. Printed copies of the trail guide are available at the trailhead kiosk or, if you have a smartphone, you can scan a QR code at the kiosk to download the trail guide. Trail guide is not necessary for this geocache hide.
To find this cache you will first need to solve for the final coordinates using the green sign near the starting coordinates.
A = The first blue number +1
B = The final red number +2
C = The first red number
D = The second blue number -2
J = The second red number
K = The first red number
L = The first blue number
M = The number in feet, reversed (e.g. if it said "25 feet", the answer would be 52)
The final location is: N44 4A.BCD W093 JK.LM
Please search only during park hours: 5am-10pm

You can validate your puzzle solution with certitude.