The cache can be found at South AB⁰ CD.EFG' East STU⁰ VW.XYZ'
The puzzle can be solved several ways but all approaches require care and a methodical approach.
-457A + 444B - 194C + 58D + 472E - 11F - 405G + 100S + 21T - 190U + 346V + 158W - 147X - 309Y + 85Z = -1317
25A - 461B - 500C + 96D - 81E - 384F - 355G - 103S - 89T - 12U - 384V - 100W - 456X + 306Y + 237Z = -8184
238A - 472B + 94C + 437D - 291E - 420F + 292G + 247S + 373T + 16U + 387V + 412W - 12X - 442Y + 141Z = 8941
-97A - 173B - 484C + 299D - 347E + 87F - 334G - 54S - 336T - 59U - 3V - 467W - 460X - 397Y - 468Z = -16049
153A + 3B + 481C - 414D - 131E + 152F + 237G - 295S + 99T + 99U - 179V + 388W - 183X - 434Y + 136Z = -1523
-88A - 488B - 296C - 206D + 374E + 286F + 273G + 140S - 318T - 352U - 374V - 239W + 435X + 236Y + 129Z = 594
-218A - 364B + 452C + 437D + 185E + 57F + 259G - 54S + 53T + 226U - 118V + 331W + 321X + 323Y - 483Z = 9965
-181A - 454B - 473C - 487D + 194E + 144F + 346G + 34S + 446T - 386U - 485V + 345W - 7X - 208Y - 297Z = -1774
-429A + 31B - 352C - 247D - 484E + 23F + 237G - 263S + 344T - 391U + 121V + 471W - 63X + 107Y + 233Z = 3634
-348A - 303B - 434C + 141D - 454E - 319F - 57G + 181S + 129T + 331U + 285V + 221W - 52X - 42Y - 429Z = -1514
395A - 77B + 382C - 328D + 161E + 427F - 284G + 196S - 83T - 486U - 437V + 147W - 101X - 83Y + 14Z = -3479
135A + 188B + 122C - 64D + 52E - 192F + 25G - 117S - 77T - 420U + 260V - 106W + 153X + 175Y + 491Z = 3269
-107A - 281B + 149C + 321D - 382E - 381F - 54G + 107S + 329T + 331U - 34V + 344W - 344X + 46Y - 457Z = -569
-177A + 450B - 18C - 128D + 148E + 200F - 187G - 380S - 437T + 1U + 488V + 394W + 140X + 213Y - 167Z = 3479
170A + 251B - 254C - 289D + 346E - 440F - 314G - 364S + 251T + 456U + 284V + 324W - 186X + 154Y - 374Z = -92
Cache is a 200ml Sistema with log book, pencil, and when placed an unregistered geocoin for the FTF.