The cache is not at the posted coords. You will need to solve the following puzzle to discover the real coords.
N38 27.ABC W121 29.DEF
A=The year the Fused Deposition Modeling (FDM) printing process patents expired - 200A
B= The general concept of and procedure to be used in 3D-printing was first described by Murray Leinster in his 194B short story Things Pass By
C= On C6 July 1984, Alain Le Méhauté, Olivier de Witte, and Jean Claude André filed their patent for the stereolithography process.
D= In 201D, Benjamin S. Cook and Manos M. Tentzeris demonstrate the first multi-material, vertically integrated printed electronics additive manufacturing platform (VIPRE) which enabled 3D printing of functional electronics operating up to 40 GHz.
E= In 19E1, Johannes F Gottwald patented the Liquid Metal Recorder, U.S. Patent 3596285A, a continuous Inkjet metal material device to form a removable metal fabrication on a reusable surface for immediate use or salvaged for printing again by remelting.
F= On F July 1984, American entrepreneur Bill Masters filed a patent for his computer automated manufacturing process and system (US 4665492).
NOTE: Beware of seasonal wasps in the area.