The first stage of this cache is only available when the Middle Tyger Library is open.
Hours: http://www.spartanburglibraries.org/Locations/Middle-Tyger
Start at the posted coordinates. You will need to gather some information in the library for the next stage. Find the book with a satellite image on the cover in the reference section. I have been informed the book is no longer in the reference section - you are looking for the 2019 Oxford Atlas of the World, ISBN 978-0-19-006581-2 in the Nonfiction 912 section.
KEY WORD (5 letters) = (3, 2, 3, 2).
A1Z26 cipher checksum = 40.
The field puzzle for this cache will take you to a local attraction with this word in its name.
Once you arrive at this location, take the (304, E10, 42°26'39.7"N 106°48'31.3"W, first part only) to the (18, 6, 1). (Make sure you enter from the (3, 1, 30, 3) side from the small parking area.)
Look at the first blue and white (9, 15, 2). There are two numbers under the word “(88, 1, 14, 8)” on this (9, 15, 2). Let the first one be A and the second one be B.
Continue on the (304, E10, 42°26'39.7"N 106°48'31.3"W, first part only) for 6.342006e-15 (0.000000000000006342006) (68, “Gur Ubzr Tnynkl”, 1, 3, [4 and 5]).
You will come to a (87, "Gur Inyhr bs Angher", 2, 10, 1) (9, 15, 2). There is a (314, F9, 30°20'23.9"N 91°38'12.8"W, first part only) on the (12, “Greevgbevny Frn”, 2, 4) side of this (9, 15, 2). Use the first digit that appears on the (314, F9, 30°20'23.9"N 91°38'12.8"W, first part only) as C.
For the last number, some knowledge of South Carolina history and geography will come in handy.
ISBN 0-471-41291-0: (187, 1, 8) or alternative: ISBN 9780716601180, Vol.18: (939, 1, 1)
Use the above clue to find a (314, F9, 30°20'23.9"N 91°38'12.8"W, first part only) within this location. Use the last number of the (42°28′N 140°52′E) as D.
AD° N BC° W