GAM(NAT) DEPTH Elevation 37.7 3.6 -1.6 36.9 3.7 -1.7 36.2 3.8 -1.8 36.4 3.9 -1.9 36.3 4 -2 36.8 4.1 -2.1 36.9 4.2 -2.2 36.7 4.3 -2.3 37.8 4.4 -2.4 37 4.5 -2.5 36.6 4.6 -2.6 36.2 4.7 -2.7 36.3 4.8 -2.8 35.2 4.9 -2.9 34.7 5 -3 33.9 5.1 -3.1 33.2 5.2 -3.2 32.4 5.3 -3.3 31.8 5.4 -3.4 30.9 5.5 -3.5 30.3 5.6 -3.6 29.9 5.7 -3.7 29 5.8 -3.8 29.8 5.9 -3.9 29.3 6 -4 29.3 6.1 -4.1 29.5 6.2 -4.2 29.8 6.3 -4.3 28.8 6.4 -4.4 29.6 6.5 -4.5 29 6.6 -4.6 28.4 6.7 -4.7 28.4 6.8 -4.8 27.5 6.9 -4.9 27.5 7 -5 26.5 7.1 -5.1 25.7 7.2 -5.2 26.6 7.3 -5.3 27.2 7.4 -5.4 28.8 7.5 -5.5 28.8 7.6 -5.6 28.5 7.7 -5.7 28.9 7.8 -5.8 30.2 7.9 -5.9 28.3 8 -6 28.3 8.1 -6.1 28.3 8.2 -6.2 27.5 8.3 -6.3 27 8.4 -6.4 29.1 8.5 -6.5 27.6 8.6 -6.6 29.8 8.7 -6.7 31.1 8.8 -6.8 31.6 8.9 -6.9 33 9 -7 34 9.1 -7.1 34.8 9.2 -7.2 37.2 9.3 -7.3 37.2 9.4 -7.4 38.3 9.5 -7.5 36.4 9.6 -7.6 37 9.7 -7.7 38.3 9.8 -7.8 37.8 9.9 -7.9 37 10 -8 38.3 10.1 -8.1 39.6 10.2 -8.2 40.7 10.3 -8.3 42 10.4 -8.4 42.6 10.5 -8.5 43.3 10.6 -8.6 43.5 10.7 -8.7 44 10.8 -8.8 43.7 10.9 -8.9 42.9 11 -9 43.7 11.1 -9.1 43.9 11.2 -9.2 44.7 11.3 -9.3 44.7 11.4 -9.4 44.2 11.5 -9.5 43.1 11.6 -9.6 45.5 11.7 -9.7 46.3 11.8 -9.8 45.3 11.9 -9.9 45.5 12 -10 44.5 12.1 -10.1 44.3 12.2 -10.2 44 12.3 -10.3 42.9 12.4 -10.4 41.9 12.5 -10.5 40.8 12.6 -10.6 39.6 12.7 -10.7 40.1 12.8 -10.8 38.5 12.9 -10.9 39 13 -11 40.1 13.1 -11.1 39 13.2 -11.2 39.6 13.3 -11.3 39.6 13.4 -11.4 38.3 13.5 -11.5 38.8 13.6 -11.6 40.7 13.7 -11.7 38.6 13.8 -11.8 38.6 13.9 -11.9 39.1 14 -12 38.8 14.1 -12.1 40.8 14.2 -12.2 41.8 14.3 -12.3 41.8 14.4 -12.4 41.8 14.5 -12.5 41 14.6 -12.6 41.9 14.7 -12.7 40.3 14.8 -12.8 38.7 14.9 -12.9 38.9 15 -13 37.1 15.1 -13.1 36.2 15.2 -13.2 35.6 15.3 -13.3 34.3 15.4 -13.4 34.6 15.5 -13.5 34.3 15.6 -13.6 32.7 15.7 -13.7 30.8 15.8 -13.8 31.4 15.9 -13.9 30.3 16 -14 29.2 16.1 -14.1 30 16.2 -14.2 28.9 16.3 -14.3 27.8 16.4 -14.4 26.7 16.5 -14.5 27.3 16.6 -14.6 27.3 16.7 -14.7 26.5 16.8 -14.8 26.8 16.9 -14.9 26.5 17 -15 26 17.1 -15.1 26.3 17.2 -15.2 26.4 17.3 -15.3 25.6 17.4 -15.4 25.6 17.5 -15.5 25.3 17.6 -15.6 25.8 17.7 -15.7 27.2 17.8 -15.8 28.2 17.9 -15.9 29 18 -16 29.6 18.1 -16.1 29.6 18.2 -16.2 29.7 18.3 -16.3 30.2 18.4 -16.4 29.9 18.5 -16.5 31.5 18.6 -16.6 32.1 18.7 -16.7 32.8 18.8 -16.8 32.3 18.9 -16.9 32.3 19 -17 32.6 19.1 -17.1 31.5 19.2 -17.2 31.5 19.3 -17.3 31.3 19.4 -17.4 31.5 19.5 -17.5 30.5 19.6 -17.6 30.7 19.7 -17.7 29.9 19.8 -17.8 29.9 19.9 -17.9 29.1 20 -18 27.8 20.1 -18.1 26.2 20.2 -18.2 26.9 20.3 -18.3 26.5 20.4 -18.4 27.1 20.5 -18.5 27.3 20.6 -18.6 26 20.7 -18.7 24.8 20.8 -18.8 23.5 20.9 -18.9 23.8 21 -19 23.8 21.1 -19.1 24.9 21.2 -19.2 26.5 21.3 -19.3 27.8 21.4 -19.4 27.3 21.5 -19.5 26.2 21.6 -19.6 26.7 21.7 -19.7 26.5 21.8 -19.8 27.5 21.9 -19.9 27.3 22 -20 27 22.1 -20.1 27 22.2 -20.2 28.6 22.3 -20.3 27.9 22.4 -20.4 26.3 22.5 -20.5 25.7 22.6 -20.6 26.3 22.7 -20.7 26.8 22.8 -20.8 27 22.9 -20.9 27.8 23 -21 28.9 23.1 -21.1 29.1 23.2 -21.2 30.2 23.3 -21.3 28.9 23.4 -21.4 28.1 23.5 -21.5 28.3 23.6 -21.6 28.6 23.7 -21.7 29.4 23.8 -21.8 28.6 23.9 -21.9 27.8 24 -22 28.9 24.1 -22.1 29.7 24.2 -22.2 30.5 24.3 -22.3 29.4 24.4 -22.4 32.1 24.5 -22.5 34.5 24.6 -22.6 33.7 24.7 -22.7 33.4 24.8 -22.8 32.1 24.9 -22.9 32.1 25 -23 33.1 25.1 -23.1 31.5 25.2 -23.2 31.5 25.3 -23.3 29.7 25.4 -23.4 31.5 25.5 -23.5 31.5 25.6 -23.6 31.8 25.7 -23.7 32.6 25.8 -23.8 32.1 25.9 -23.9 32.9 26 -24 33.4 26.1 -24.1 32.6 26.2 -24.2 31.3 26.3 -24.3 30.5 26.4 -24.4 30.5 26.5 -24.5 27.5 26.6 -24.6 25.7 26.7 -24.7 25.7 26.8 -24.8 24.6 26.9 -24.9 24.6 27 -25 23.8 27.1 -25.1 22.4 27.2 -25.2 21.9 27.3 -25.3 22.1 27.4 -25.4 21.6 27.5 -25.5 21 27.6 -25.6 20.8 27.7 -25.7 20.5 27.8 -25.8 20 27.9 -25.9 20.8 28 -26 21 28.1 -26.1 21.3 28.2 -26.2 21.3 28.3 -26.3 23.4 28.4 -26.4 23.4 28.5 -26.5 25 28.6 -26.6 26.1 28.7 -26.7 27.2 28.8 -26.8 27.7 28.9 -26.9 28.8 29 -27 29.6 29.1 -27.1 30.4 29.2 -27.2 30.6 29.3 -27.3 32.5 29.4 -27.4 32.3 29.5 -27.5 32.8 29.6 -27.6 32.5 29.7 -27.7 32 29.8 -27.8 31.7 29.9 -27.9 31.2 30 -28 30.1 30.1 -28.1 28.8 30.2 -28.2 28 30.3 -28.3 27.7 30.4 -28.4 26.4 30.5 -28.5 26.4 30.6 -28.6 25.8 30.7 -28.7 25 30.8 -28.8 25 30.9 -28.9 25.3 31 -29 23.7 31.1 -29.1 23.4 31.2 -29.2 22.7 31.3 -29.3 23 31.4 -29.4 21.6 31.5 -29.5 21.4 31.6 -29.6 20.9 31.7 -29.7 19.9 31.8 -29.8 20.4 31.9 -29.9 20.1 32 -30 20.4 32.1 -30.1 19.6 32.2 -30.2 20.7 32.3 -30.3 21.5 32.4 -30.4 20.7 32.5 -30.5 20.4 32.6 -30.6 20.9 32.7 -30.7 20.7 32.8 -30.8 21.7 32.9 -30.9 20.7 33 -31 20.4 33.1 -31.1 21.2 33.2 -31.2 21.7 33.3 -31.3 21.6 33.4 -31.4 21.6 33.5 -31.5 22.2 33.6 -31.6 22.7 33.7 -31.7 23.5 33.8 -31.8 23.8 33.9 -31.9 24.3 34 -32 25.4 34.1 -32.1 25.7 34.2 -32.2 25.9 34.3 -32.3 24.6 34.4 -32.4 24.6 34.5 -32.5 25.7 34.6 -32.6 27 34.7 -32.7 26.2 34.8 -32.8 26.2 34.9 -32.9 25.7 35 -33 26.5 35.1 -33.1 26.7 35.2 -33.2 28.1 35.3 -33.3 26.7 35.4 -33.4 28.2 35.5 -33.5 27.4 35.6 -33.6 27.2 35.7 -33.7 27.7 35.8 -33.8 26.9 35.9 -33.9 27.2 36 -34 26.9 36.1 -34.1 26.6 36.2 -34.2 27.7 36.3 -34.3 27.7 36.4 -34.4 27.4 36.5 -34.5 26.1 36.6 -34.6 25.6 36.7 -34.7 24.2 36.8 -34.8 24.8 36.9 -34.9 23.7 37 -35 23.9 37.1 -35.1 23.8 37.2 -35.2 23.5 37.3 -35.3 22.4 37.4 -35.4 24.9 37.5 -35.5 24.4 37.6 -35.6 25.7 37.7 -35.7 26.8 37.8 -35.8 25.5 37.9 -35.9 25.9 38 -36 26.2 38.1 -36.1 26.7 38.2 -36.2 25.9 38.3 -36.3 25.9 38.4 -36.4 26.7 38.5 -36.5 26.7 38.6 -36.6 27 38.7 -36.7 27.5 38.8 -36.8 27.3 38.9 -36.9 26.5 39 -37 28.1 39.1 -37.1 28.5 39.2 -37.2 27.5 39.3 -37.3 27.5 39.4 -37.4 28.9 39.5 -37.5 26.7 39.6 -37.6 26.2 39.7 -37.7 25.7 39.8 -37.8 24.6 39.9 -37.9 25.7 40 -38 24.9 40.1 -38.1 24.4 40.2 -38.2 24.1 40.3 -38.3 24.7 40.4 -38.4 23.9 40.5 -38.5 23.9 40.6 -38.6 24.1 40.7 -38.7 25.5 40.8 -38.8 24.9 40.9 -38.9 26.5 41 -39 27.3 41.1 -39.1 26.2 41.2 -39.2 25.1 41.3 -39.3 25.2 41.4 -39.4 26.3 41.5 -39.5 24.7 41.6 -39.6 23.9 41.7 -39.7 23.9 41.8 -39.8 22.5 41.9 -39.9 23.6 42 -40 22.5 42.1 -40.1 22.8 42.2 -40.2 22.5 42.3 -40.3 21.5 42.4 -40.4 21.9 42.5 -40.5 21.4 42.6 -40.6 21.4 42.7 -40.7 21.1 42.8 -40.8 20.3 42.9 -40.9 20 43 -41 19.2 43.1 -41.1 19 43.2 -41.2 19 43.3 -41.3 19.5 43.4 -41.4 20.8 43.5 -41.5 20.2 43.6 -41.6 22.1 43.7 -41.7 23.2 43.8 -41.8 23.4 43.9 -41.9 24.2 44 -42 23.4 44.1 -42.1 25.3 44.2 -42.2 25.8 44.3 -42.3 26.6 44.4 -42.4 27.7 44.5 -42.5 27.5 44.6 -42.6 27.3 44.7 -42.7 26.5 44.8 -42.8 27.8 44.9 -42.9 28.1 45 -43 28.9 45.1 -43.1 29.4 45.2 -43.2 30.5 45.3 -43.3 32.1 45.4 -43.4 33.1 45.5 -43.5 32.9 45.6 -43.6 32.3 45.7 -43.7 32.3 45.8 -43.8 34.3 45.9 -43.9 35.1 46 -44 35.4 46.1 -44.1 36.7 46.2 -44.2 35.9 46.3 -44.3 36.2 46.4 -44.4 36.4 46.5 -44.5 36.4 46.6 -44.6 36.4 46.7 -44.7 37 46.8 -44.8 36.4 46.9 -44.9 36.4 47 -45 35.6 47.1 -45.1 34.8 47.2 -45.2 34.8 47.3 -45.3 32.7 47.4 -45.4 30.8 47.5 -45.5 29.2 47.6 -45.6 29.5 47.7 -45.7 29 47.8 -45.8 27.3 47.9 -45.9 24.6 48 -46 23.8 48.1 -46.1 23.9 48.2 -46.2 22.5 48.3 -46.3 21.5 48.4 -46.4 21.5 48.5 -46.5 20.7 48.6 -46.6 20.1 48.7 -46.7 20.9 48.8 -46.8 20.7 48.9 -46.9 21.5 49 -47 21.2 49.1 -47.1 20.9 49.2 -47.2 21.2 49.3 -47.3 20.1 49.4 -47.4 21.7 49.5 -47.5 22.3 49.6 -47.6 22.5 49.7 -47.7 22 49.8 -47.8 22.5 49.9 -47.9 22.3 50 -48 23.6 50.1 -48.1 22 50.2 -48.2 21.6 50.3 -48.3 20.9 50.4 -48.4 22 50.5 -48.5 21.2 50.6 -48.6 22.5 50.7 -48.7 22.3 50.8 -48.8 21.5 50.9 -48.9 21.6 51 -49 21.3 51.1 -49.1 21.6 51.2 -49.2 22.6 51.3 -49.3 22.4 51.4 -49.4 21.8 51.5 -49.5 21.3 51.6 -49.6 20.8 51.7 -49.7 20.8 51.8 -49.8 20.8 51.9 -49.9 20 52 -50 19.4 52.1 -50.1 18.1 52.2 -50.2 19.4 52.3 -50.3 19.4 52.4 -50.4 20.4 52.5 -50.5 19.9 52.6 -50.6 20 52.7 -50.7 18.6 52.8 -50.8 18.4 52.9 -50.9 19.7 53 -51 19.9 53.1 -51.1 20.7 53.2 -51.2 19.3 53.3 -51.3 18 53.4 -51.4 18.3 53.5 -51.5 19.3 53.6 -51.6 20.4 53.7 -51.7 20.6 53.8 -51.8 21.4 53.9 -51.9 22.4 54 -52 23 54.1 -52.1 23.5 54.2 -52.2 24.9 54.3 -52.3 24.3 54.4 -52.4 23.8 54.5 -52.5 23 54.6 -52.6 23.2 54.7 -52.7 23.7 54.8 -52.8 24 54.9 -52.9 24 55 -53 22.1 55.1 -53.1 22.4 55.2 -53.2 21.8 55.3 -53.3 22.1 55.4 -53.4 22.4 55.5 -53.5 21.3 55.6 -53.6 21.3 55.7 -53.7 21.6 55.8 -53.8 22.7 55.9 -53.9 23.2 56 -54 22.2 56.1 -54.1 22.4 56.2 -54.2 23 56.3 -54.3 22.7 56.4 -54.4 22.4 56.5 -54.5 23 56.6 -54.6 23.5 56.7 -54.7 23 56.8 -54.8 22.4 56.9 -54.9 21.9 57 -55 21.4 57.1 -55.1 21.9 57.2 -55.2 21.9 57.3 -55.3 23.2 57.4 -55.4 24.9 57.5 -55.5 25.7 57.6 -55.6 28.6 57.7 -55.7 28.9 57.8 -55.8 27 57.9 -55.9 26.7 58 -56 26.5 58.1 -56.1 27 58.2 -56.2 27.5 58.3 -56.3 27.8 58.4 -56.4 27.3 58.5 -56.5 28.3 58.6 -56.6 29.1 58.7 -56.7 30.2 58.8 -56.8 31.4 58.9 -56.9 31.4 59 -57 32.2 59.1 -57.1 32.4 59.2 -57.2 32.7 59.3 -57.3 33.8 59.4 -57.4 33.2 59.5 -57.5 33.8 59.6 -57.6 33.2 59.7 -57.7 31.4 59.8 -57.8 31.1 59.9 -57.9 32.2 60 -58 32.7 60.1 -58.1 33 60.2 -58.2 33 60.3 -58.3 32.2 60.4 -58.4 31.1 60.5 -58.5 31.5 60.6 -58.6 30.7 60.7 -58.7 31.5 60.8 -58.8 31.8 60.9 -58.9 30.6 61 -59 30.6 61.1 -59.1 31.2 61.2 -59.2 31.4 61.3 -59.3 31.7 61.4 -59.4 31.4 61.5 -59.5 30.6 61.6 -59.6 29 61.7 -59.7 30.1 61.8 -59.8 29.6 61.9 -59.9 29.3 62 -60 28.5 62.1 -60.1 28 62.2 -60.2 27.1 62.3 -60.3 28.4 62.4 -60.4 30 62.5 -60.5 32.2 62.6 -60.6 33 62.7 -60.7 34.9 62.8 -60.8 32.8 62.9 -60.9 31.4 63 -61 32.2 63.1 -61.1 32 63.2 -61.2 30.1 63.3 -61.3 30.3 63.4 -61.4 30.3 63.5 -61.5 29.5 63.6 -61.6 28.7 63.7 -61.7 28.4 63.8 -61.8 27.3 63.9 -61.9 28.4 64 -62 28.7 64.1 -62.1 28.1 64.2 -62.2 27.3 64.3 -62.3 27.2 64.4 -62.4 27.4 64.5 -62.5 25.8 64.6 -62.6 24.2 64.7 -62.7 23.4 64.8 -62.8 21.6 64.9 -62.9 22.6 65 -63 24.1 65.1 -63.1 24.1 65.2 -63.2 24.6 65.3 -63.3 25.9 65.4 -63.4 26.3 65.5 -63.5 27.9 65.6 -63.6 28.7 65.7 -63.7 30.3 65.8 -63.8 31.4 65.9 -63.9 31.9 66 -64 31.6 66.1 -64.1 30.8 66.2 -64.2 31.6 66.3 -64.3 31.9 66.4 -64.4 31.6 66.5 -64.5 29 66.6 -64.6 28.7 66.7 -64.7 28 66.8 -64.8 28.5 66.9 -64.9 28.8 67 -65 28.5 67.1 -65.1 27.3 67.2 -65.2 27.1 67.3 -65.3 27.9 67.4 -65.4 27.6 67.5 -65.5 27.6 67.6 -65.6 24.7 67.7 -65.7 23.1 67.8 -65.8 22.5 67.9 -65.9 21.7 68 -66 21.5 68.1 -66.1 21.2 68.2 -66.2 21.2 68.3 -66.3 20.7 68.4 -66.4 20.1 68.5 -66.5 19.9 68.6 -66.6 20.7 68.7 -66.7 22.8 68.8 -66.8 23 68.9 -66.9 21.4 69 -67 20.3 69.1 -67.1 20.2 69.2 -67.2 20.2 69.3 -67.3 21 69.4 -67.4 20.8 69.5 -67.5 21 69.6 -67.6 22.1 69.7 -67.7 22.6 69.8 -67.8 23.2 69.9 -67.9 23.2 70 -68 22.9 70.1 -68.1 22.6 70.2 -68.2 22.1 70.3 -68.3 22.4 70.4 -68.4 25 70.5 -68.5 25 70.6 -68.6 24.5 70.7 -68.7 23.7 70.8 -68.8 22.1 70.9 -68.9 22.4 71 -69 22.8 71.1 -69.1 23.3 71.2 -69.2 23.4 71.3 -69.3 23.7 71.4 -69.4 22.4 71.5 -69.5 21.8 71.6 -69.6 21 71.7 -69.7 20 71.8 -69.8 19.4 71.9 -69.9 18.6 72 -70 18.6 72.1 -70.1 17.8 72.2 -70.2 17.4 72.3 -70.3 18.2 72.4 -70.4 17.9 72.5 -70.5 16 72.6 -70.6 16.8 72.7 -70.7 17.9 72.8 -70.8 19 72.9 -70.9 19.2 73 -71 19.8 73.1 -71.1 20.3 73.2 -71.2 20.8 73.3 -71.3 20.6 73.4 -71.4 21.1 73.5 -71.5 21.9 73.6 -71.6 21.9 73.7 -71.7 22.7 73.8 -71.8 22.4 73.9 -71.9 23.4 74 -72 24.8 74.1 -72.1 25 74.2 -72.2 27.7 74.3 -72.3 27.9 74.4 -72.4 26.8 74.5 -72.5 26.2 74.6 -72.6 25.9 74.7 -72.7 25.9 74.8 -72.8 27 74.9 -72.9 27 75 -73 28.9 75.1 -73.1 28.2 75.2 -73.2 27.5 75.3 -73.3 27.3 75.4 -73.4 27.1 75.5 -73.5 25.5 75.6 -73.6 24.9 75.7 -73.7 23.9 75.8 -73.8 24.5 75.9 -73.9 25.1 76 -74 24.5 76.1 -74.1 23.7 76.2 -74.2 23.1 76.3 -74.3 21 76.4 -74.4 23.3 76.5 -74.5 23.9 76.6 -74.6 24.3 76.7 -74.7 24.4 76.8 -74.8 24 76.9 -74.9 22.9 77 -75 22.4 77.1 -75.1 19.9 77.2 -75.2 20.2 77.3 -75.3 20.7 77.4 -75.4 20.9 77.5 -75.5 21.1 77.6 -75.6 21.9 77.7 -75.7 21.9 77.8 -75.8 23.8 77.9 -75.9