The cache is at Loy's Station Park, a bucolic Frederick County Park along Owens Creek. Lots of wildlife reside here, including Baltimore orioles, phoebes (check the pavilions!), and a brown water snake who's guarded the small footbridge for many years. Take some food and drink, your field glasses, a field guide, or a collection of poems by Mary Oliver, or wade in the stream. Ample parking.
One way to determine the right coordinates is to solve for the last 3 digits of latitude by finding the sum of:
The year George Herman Ruth was born
The year he hit 60 home runs
The year Hank Aaron broke Ruth's career home run record
The year Maryland became a state
The year the Civil War began and
Twice the total of Cal Ripken, Jr's career homers
Then deduct the number of World Series winners Mickey Mantle played on, and divide by 20.
To identify the last 3 digits of longitude (XYZ), determine the value of X^2 + Y^2 + Z^2, where
X=The title number in a "dirty" 1967 film starring Lee Marvin, Charles Bronson, Telly Savalas, & Donald Sutherland
Y=The number of a ball you don't want to be behind
Z=The requisite number for a tango
However, if that method is not to your liking, you might prefer this one:
The coordinates are N 39 36.ABC W 077 21.DEF, and the following statements are true:
A=D+3
B=E€/€
C=5F/2
A/C=(D+E+F)/5
A+B+C=10E+F/2
You can validate your puzzle solution with certitude.