DGPS located positions of Land Geophone Line Id Long Lat Depth Line#Geoph# (deg) (deg) (m) Line 1 (NE to SW =>down hill, across road, on to sand): L1G1 -117.46544 33.29599 -18.2 L1G2 -117.46556 33.29590 -17.4 L1G3 -117.46566 33.29580 -16.9 L1G4 -117.46577 33.29571 -16.6 L1G5 -117.46588 33.29560 -15.7 L1G6 -117.46599 33.29551 -14.7 L1G7 -117.46611 33.29541 -14.2 L1G8 -117.46623 33.29532 -12.7 L1G9 -117.46634 33.29522 -11.2 L1G10 -117.46645 33.29513 -9.7 L1G11 -117.46656 33.29502 -8.8 L1G12 -117.46667 33.29493 -7.8 L1G13 -117.46678 33.29484 -6.8 L1G14 -117.46689 33.29473 -6.6 L1G15 -117.46701 33.29464 -6.4 L1G16 -117.46713 33.29454 -6.2 L1G17 -117.46724 33.29444 -6.1 L1G18 -117.46735 33.29436 -6.0 L1G19 -117.46746 33.29426 -5.8 L1G20 -117.46758 33.29416 -5.9 L1G21 -117.46769 33.29406 -6.4 L1G22 -117.46781 33.29396 -6.7 L1G23 -117.46792 33.29386 -6.4 L1G24 -117.46803 33.29378 -6.2 Line 2 (NW to SE => down hill, across road, across swamp, into chaparral): L2G1 -117.46566 33.29561 -13.6 L2G2 -117.46554 33.29552 -13.1 L2G3 -117.46542 33.29543 -11.6 L2G4 -117.46531 33.29534 -10.1 L2G5 -117.46519 33.29524 -7.5 L2G6 -117.46507 33.29514 -6.6 L2G7 -117.46496 33.29506 -5.6 L2G8 -117.46484 33.29496 -4.7 L2G9 -117.46473 33.29487 -4.8 L2G10 -117.46462 33.29477 -4.9 L2G11 -117.46448 33.29469 -5.0 L2G12 -117.46436 33.29459 -5.3 L2G13 -117.46425 33.29449 -5.5 L2G14 -117.46413 33.29440 -5.6 L2G15 -117.46402 33.29431 -5.7 L2G16 -117.46389 33.29423 -5.9 L2G17 -117.46373 33.29416 -6.0 L2G18 -117.46365 33.29406 -6.0 L2G19 -117.46352 33.29396 -6.0 L2G20 -117.46341 33.29387 -5.9 L2G21 -117.46330 33.29375 -5.8 L2G22 -117.46318 33.29367 -5.8 L2G23A -117.46310 33.29359 -5.5 L2G23B -117.46311 33.29360 -6.4 moved after ShotPoint 1D L2G24 -117.46298 33.29353 -5.7 Line 3 (NE to SW => parallel to road, through swamp, on to sand): L3G1 -117.46451 33.29521 -7.2 L3G2 -117.46465 33.29515 -5.9 L3G3 -117.46480 33.29510 -5.8 L3G4 -117.46495 33.29505 -5.8 L3G5 -117.46510 33.29500 -5.3 L3G6 -117.46525 33.29494 -5.0 L3G7 -117.46540 33.29490 -4.7 L3G8 -117.46555 33.29486 -4.6 L3G9 -117.46570 33.29481 -4.5 L3G10 -117.46586 33.29475 -4.3 L3G11 -117.46600 33.29470 -4.1 L3G12 -117.46615 33.29464 -4.0 L3G13 -117.46629 33.29459 -3.8 L3G14 -117.46644 33.29454 -3.8 L3G15 -117.46659 33.29449 -3.8 L3G16 -117.46675 33.29445 -3.7 L3G17 -117.46689 33.29440 -3.6 L3G18 -117.46704 33.29434 -3.5 L3G19 -117.46720 33.29429 -3.4 L3G20 -117.46734 33.29424 -3.3 L3G21 -117.46749 33.29419 -3.3 L3G22 -117.46764 33.29415 -3.3 L3G23 -117.46779 33.29409 -3.3 L3G24 -117.46794 33.29404 -3.3 2-D Array: Not DGPS: Theodolite surveyed locations (< 2m in absolute location from DGPS, < 1m in relative position). 2nd Id is 'ring' location. A ring is inner most, D ring is out most. See Dorman's Field Computation book for geometry. Id 2 2DG1 -117.464779 33.291722 -4.34 B5 2DG2 -117.464849 33.291807 -4.34 C7 2DG3 -117.465006 33.291993 -4.15 D9 2DG4 -117.464679 33.292042 -4.46 D1 2DG5 -117.464661 33.291801 -4.45 C1 2DG6 -117.464390 33.291902 -4.67 D2 2DG7 -117.464277 33.291641 -4.63 D3 2DG8 -117.464550 33.291675 -4.41 C2 2DG9 -117.464675 33.291677 -4.36 B1 2DG10 -117.464737 33.291671 -4.33 A1 2DG11 -117.464695 33.291583 -4.28 B2 2DG12 -117.464744 33.291609 -4.30 A2 2DG13 -117.464806 33.291644 -4.30 A3 2DG14 -117.464859 33.291655 -4.22 B4 2DG15 -117.464971 33.291688 -4.21 C6 2DG16 -117.465220 33.291780 -4.07 D8 2DG17 -117.465219 33.291501 -3.76 D7 2DG18 -117.464936 33.291533 -4.02 C5 2DG19 -117.465005 33.291289 -3.95 D6 2DG20 -117.464808 33.291569 -4.24 B3 2DG21 -117.464770 33.291461 -4.31 C4 2DG22 -117.464678 33.291241 -4.36 D5 2DG23 -117.464390 33.291380 -4.52 D4 2DG24 -117.464599 33.291524 -4.31 C3