la vallée de la Sevre Nantaise 52.3 37 52.3 1 51.8 52 52.9 53.1 58.6 59.1 59.4 59.4 64.7 66.7 67.8 69.7 69.4 69.2 69.1 67.4 67.4 65.5 65.5 65 64.9 64.4 66.4 66.7 64.8 64.7 64.3 62.2 61.1 59.8 57.7 58.6 55.8 55.3 59.2 59.8 2 59.6 59.5 59.6 60.5 60.9 61.7 61.5 63.2 62.8 60.9 60.9 60.8 60.9 61 61.1 64 64.1 63.7 63.8 63.5 63.5 63.4 63.3 63.1 63.6 63.6 63.6 63.6 63.4 63.1 62.9 62.7 62.3 57.3 57.2 57.1 57 3 57 57 57 57 57.1 57.2 57.2 57.1 57 56.9 56.8 56.8 56.7 56.3 54.9 50.5 50.3 50.2 50.1 52.3 52 52.9 56.3 57.1 55.9 55.6 56.8 56.3 54.6 51.7 53.2 53.4 54.9 56.2 57.6 57.1 57.3 4 57.4 57.6 56 55.6 54.2 55.6 55.9 52.7 51.9 54.2 51.7 59.9 57.3 59.5 58 63.3 61 61.6 63.5 66 66.6 67.7 70.1 5 70.9 70.5 68.4 66.8 66.2 66 65.9 65.5 64.6 61 58.7 57.5 55.6 52.7 52.6 52.5 52.3 52.3 52 51.7 51.6 51.3 52.3 52.7 53 53.5 53.8 53.9 55.9 51.3 51.1 50.8 49.9 49.4 49.1 48.2 48.2 48.2 48.4 6 48.5 48.5 48.5 48.7 49.2 54.2 54.7 56.5 56.5 58.3 59 60.2 64.1 64.4 64.4 70 70.1 70.2 71.1 73.5 73.8 74 74.3 74.4 74.5 74.5 74.6 75.6 75.7 75.7 76.2 76.5 77.1 76.3 77 76.9 77 76.9 76.9 77 77 77.2 78.3 78.6 79.2 80.4 81.1 83 84.2 84.4 84.7 86.4 88 88.4 88.6 88.8 88.2 88 88 88 7 88 87.9 87.9 87.8 87.6 87.5 87.3 87.2 85.8 85.9 86.5 86.3 86.3 86.2 86.2 86.2 85.9 83.3 83.2 79.3 73.9 68.3 63.4 8 60.8 72.7 72.9 73.1 73.5 74.8 78.8 86.1 86.1 9 86 85.5 85.3 85.1 84.8 83.5 83.6 83.6 84.1 84 84 83.3 82.4 80.9 78.9 78.6 78.4 78.1 78 77.1 77 76.9 76.9 76.9 76.9 76.8 76.7 76.7 76.6 76.7 75.9 76 76.3 76.6 76.8 76.9 77.7 78.2 78.3 78.4 79.2 79.3 79.5 80.8 81.6 82 83.3 83.6 84 84 83.9 83.9 83.9 83.9 83.8 83.6 83.3 83.7 84 84 84 84.4 84.6 84.7 84.7 84 83.8 83.9 83.5 83.6 83.9 82.9 82 82 82 81.1 80.7 79.1 78.7 77.8 77.8 77.7 77.7 77.7 77 76.9 76.7 76.6 76.4 76.2 75.9 75.4 75.4 75.8 75.3 74.8 74.3 73.5 73.6 74 74.5 74.6 75.2 75.2 75.2 75.3 75.3 73.8 73.4 73.1 72.8 71.8 64 57.4 54.9 53.5 10 53.4 52.7 51.2 50.3 48.7 48.3 49.1 48.9 51.6 49.1 48.4 48.4 48.2 47.9 47.7 47.8 47.6 46.9 46.5 46.4 46 45.8 45.7 45.6 44.5 45 45.1 45.3 45.9 46.7 48.2 50.4 51 50.6 51.6 52.7 52.3 49.4 51.9 11 51.1 50.9 52.3 48.7 49.6 50.3 50.1 50.3 50 49.6 49.1 48.1 46.9 49.6 46.4 47 49.6 52.3 60.8 60.9 61.2 63.6 64.5 64.8 65.2 64.5 64 66.8 66.7 66.5 66.5 66.7 66.7 66.8 67.1 67.1 66 65.3 63 62.2 12 62 60.8 60.3 60.3 60.2 60.1 60.4 62.1 62.6 63.1 64.3 64.7 67.1 67.2 67.3 68 68.4 68.3 68.5 68.8 68.9 69 69.1 69.3 69.6 69.3 69.1 69.1 69.1 69.1 69.3 70.9 13 71.4 72.2 72.1 71.1 71.2 71.5 71.8 71.6 71.8 71.8 71.7 71.6 71.5 70.6 70.3 68.5 68 67.8 67.6 65.7 64 61.4 57.2 54.3 52.6 50.8 50.1 47 41.1 40.5 38.6 38.2 37.8 37.3 34.5 34.4 14 34.4 34.2 34.1 34 34.1 34 34.1 34.2 34.2 34.5 36.1 43.4 44.7 53.1 54.5 57.5 58.1 59.5 61 62.1 64.3 64.3 64.5 65.3 65.7 67.8 67.9 68.1 68.2 68.5 69.3 69.4 69.8 70.3 70.4 70.5 70.5 70.6 70.6 70.4 70.1 70.1 70 69.2 69.2 69.1 69 68.7 68.6 68.6 15 68.5 67.9 67.9 65.7 65.5 65.1 64.7 65.8 64.9 62.7 62.3 61.9 61.8 61.7 61.6 61.5 61.4 61.3 60.3 60.1 58.9 58.6 58.5 58.4 58.2 57.2 57.5 16 57.6 57.6 57.5 59.5 59.6 59.6 59.7 59.9 60 60.1 58.2 58.3 58.3 58.4 58.5 58.7 58.8 59 59.1 59.1 58.8 58.3 57.3 56.8 54.8 54.8 54.5 54.2 53.5 52.8 51 50.5 50 49.8 49.6 46.5 46.6 46.8 45.5 43.6 42.5 42 41.4 41 40.8 40.7 41.2 41.7 41.6 41.2 42.9 41.6 17 42.5 39.7 40.5 35.6 36.1 36.6 32.3 32.4 32.3 33.2 32.4 30.3 30.3 30.5 30.6 30.8 31.1 32.9 32.8 33.1 33.9 34.2 34.3 33.6 32.1 31.6 32 32.9 18 32.9 32.8 34.1 34.7 33.7 33.2 33 31.4 32.6 33.2 33.1 33 32.9 31.1 30.9 30.2 30.6 30.8 31 31.2 31.6 33.2 35.2 36.3 35.1 35.7 36.8 39.3 37.7 38.1 37.2 36.8 36.8 37.1 37.5 37.8 37.6 37.4 37.4 37.5 37 36.4 37.2 36.4 36.2 36.2 36.5 36.9 36.9 32.4 32.5 32.4 31.2 32.1 32.8 19 32.9 33.6 33.8 33.9 33.8 35.5 40.7 42.4 44.1 46.5 48.8 49.2 49.3 49.5 49.6 49.7 49.8 49.8 50 50.1 50.2 50.8 51.4 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.7 51.6 50 49.7 49.7 49.6 49.6 49.5 49.5 49.5 49.5 49.5 49.5 49.6 50.8 51.1 51.2 51.3 51.3 51.4 49.5 49.7 49.8 50 50.2 50.3 51.5 51.5 51.4 51.4 51.4 51.5 51.5 51.7 51.8 52 52.1 52.1 53.4 53.4 53.5 53.5 53.6 53.6 53.7 53.8 53.8 54.4 20 54.4 54.6 55 55.6 56 56 55.9 55.5 55.2 54.9 54.6 54.4 54.1 53.9 53.7 53.5 53.2 52.9 52.8 52.7 52.5 52.4 52.2 52.1 51.8 51.7 51.5 51.4 51.7 51.9 52.2 52.3 52.4 52.5 52.4 52.3 52 51.7 52.7 53.6 54.3 54.7 55.1 55.3 55.4 55.5 55.4 55.2 54.9 54.7 54.6 54.5 54.5 54.4 54.4 54.4 54.5 54.6 54.8 54.8 54.9 55.1 55.2 55.3 55.4 55.4 57 57 57 57.1 57.1 57.2 57.3 57.3 57.4 57.6 57.8 58.2 58.4 58.8 59.1 59.4 59.6 60.5 60.7 60.5 60.4 60.2 60.1 60 59.9 59.7 59.6 59.4 59.2 59.1 59 58.8 58.8 56.5 56.5 56.4 56.4 56.4 56.4 56.3 56.3 56.3 56.3 56.4 56.5 56.6 56.7 56.9 21 57.2 59.5 60.5 61.1 61.3 61.3 61.3 61.3 61.3 61.1 59.4 58.3 58.2 56.5 56.1 56.3 59.3 60.6 61.2 62.5 62.5 62.5 62.6 62.6 62.6 62.7 62.8 62.8 62.9 63 63.1 63.3 62.5 62.5 62.5 62.5 62.6 62.6 62.6 62.6 62.6 62.5 64.1 64.2 64.2 64.6 65.7 66.1 66.9 66.9 66.9 65.6 65.4 65.4 65.5 65.7 65.9 65.9 66.2 67.2 67.2 67.2 67.2 67.2 67.3 67.3 67.4 67.5 67.6 67.6 68.1 68.1 68.1 68.1 68.1 68 22 68 65.9 65.6 65.5 65.4 65.3 65.5 68.1 70.4 70.6 70.7 71.3 71.9 71.7 71.6 71.6 71.6 71.6 71.5 71.5 71.5 71.5 71.4 71.4 71.4 71.4 71.4 71.3 71.3 71.3 71.1 71.2 71.2 71.2 71.2 71.2 71.2 71.2 71.2 71.3 72.3 72.4 72.2 73.4 75 75.7 75.3 75.4 75.6 75.8 76 76 76.3 76.3 76 75.8 75.7 75.7 75.7 75.6 75.7 75.7 75.6 75.5 75.4 75.3 75.2 73.8 73.1 72.9 73 72.5 72 72.1 72 72 71.9 71.9 71.9 71.9 71.8 71.8 71.8 71.8 71.7 71.7 71.7 71.7 71.7 71.7 71.7 71 71 70.9 70.9 70.9 70.8 70.8 70.7 70.7 70.6 70.6 71.5 71.4 71.1 71.3 71.2 71.2 71.6 23 71.5 71.4 71.4 70.6 70.6 70.6 70.5 70.5 70.5 70.4 70.4 70.4 70.3 70.3 70.2 70.2 70.2 70.2 70.1 70.1 70.1 70.1 70.3 70.3 70.3 70.4 70.4 70.5 70.5 70.6 70.6 70.7 70.8 70.9 71.3 72.5 71.4 70.8 69.5 68.3 68.5 68.5 68.5 68.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.5 69.4 69.4 69.3 69.2 68.8 68.8 69.4 69.6 69.7 70.3 70 70.6 70.2 70.2 70.2 70.3 70.3 70.3 70.3 70.3 70.3 70.3 70.4 70.4 70.4 70.4 70.4 70.5 70.5 70.5 70.6 70.6 70.7 70.8 24 70.8 70.8 70.8 70.8 71.3 71.3 71.4 71.4 71.5 71.5 71.5 70.6 70.6 70.6 70.7 70.8 70.8 70.8 70.7 70.7 69.2 69 69 68.6 68.5 68.4 68.2 68.1 68 70.1 69.8 68.6 69.3 69.2 69.1 68.1 68.2 67.6 65.3 64.2 64.2 64.1 64.1 64.1 63.6 63.6 63.5 63.4 63.4 63.3 63.2 63.1 63 63 62.9 62.9 62.9 62.8 62.8 62.9 63 63.1 63.2 63.1 63.1 63.1 62.8 61.9 61.5 61.7 61.8 61.8 59.6 60 59.9 59.5 59.2 59 58.5 58.3 58.3 58.3 58.3 58.3 58.2 58.1 55.7 55.8 56 56.1 56.2 55.5 55.2 54.9 54.8 54.5 54.2 54 53.8 53.6 53.5 53.3 53.3 53.2 53 52.9 52.7 52.7 52.6 52.6 52.6 52.7 50.6 51.2 26 51.1 49.6 49.5 49.4 49.4 49.4 49.3 49.3 49.4 49.5 49.7 50 51.4 52.9 52.9 52.8 52.8 52.8 52.8 52.9 52.2 52.1 51.3 51.1 50.9 50.7 50.6 50.9 48.3 47.3 47.2 47.1 47 46.9 46.8 46.6 46.6 42.1 42 41.9 41.7 41.6 41.6 41.6 41.9 41.9 42 42 42 42.1 42.6 42.5 42.3 41.9 41.6 40.6 40.5 40.4 40.2 40.1 40 39.8 39.7 39.7 39.6 39.6 39.6 39.5 39.5 39.4 39.3 39.2 39 38.8 38.8 27 38.5 38.2 38 38.6 39.6 39.7 39.7 41.6 40.4 41 41 40.8 40.7 28 40.4 40.1 41.8 42.4 42.3 43.6 44.6 41.9 39.9 38.3 37.3 36.6 35.2 34.2 35.2 35.4 35.8 36.6 36.6 36.6 36.6 36.7 36.8 36.9 36.9 37 37.1 37.3 37.3 29 37 37 37 37 37 37 37 37 37 37 37 36.8 35.1 36 40.4 41.4 41.3 43.6 40.8 42.1 41.8 41.6 41.6 41.8 42.1 42.2 42.1 41.8 41.7 41.4 41.3 41.4 41.4 42.6 42.6 31 42.6 42.6 42.7 43 43.3 43.3 43.3 43.2 45.7 45.8 46 46.4 46.7 47.2 47.5 48.1 48.9 49.5 51.3 53.6 56 57.1 57.7 58 58.5 59.1 59.5 59.8 60 60.3 60.4 60.7 63.2 63.2 63.3 63.4 63.5 63.6 63.7 63.9 64 64.2 65.2 65.3 65.6 65.7 66 66.3 66.6 67 67 67 67 67 67 67 67 67 67 67.6 67.7 67.7 67.9 68 68.1 68.2 68.2 68.3 69.3 69.3 69.4 69.4 69.5 69.5 69.6 69.7 69.9 70 70.1 70.2 70.4 70.4 70.3 70.3 70.2 70.2 70.2 70.2 70.2 70.2 32 71.9 71.8 71.7 71.6 71.3 71.6 71.7 71.9 72 72.2 72.3 72.3 72.3 72.3 72.3 72.6 72.7 72.8 72.9 72.9 73 73.1 73.1 73 73 73 73 73 73.1 73.1 73.1 73.2 73.3 73.3 73.3 73.4 73.4 73.4 73.4 73.4 74.2 74.2 74.2 74.2 74.2 74.3 74.3 74.4 74.4 73 73.1 33 73.3 73.3 73.7 73.7 73.6 75.7 76.1 77.8 78.7 78.8 78.9 79 77.4 77.4 77.4 77.4 77.4 77.4 77.3 78.2 78 77 77 34 77 76.9 76.7 76.6 76.4 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64.9 63.5 63.2 63 62.9 63.4 64 64.5 65.4 67.5 68.2 68.3 68.3 68.2 68.4 68.4 68.4 68.4 68.4 69.8 69.8 70.3 70.8 73 73.3 73.6 75 75.3 75.4 75.6 75.8 75.3 74.1 74.9 74.5 75.1 75 75 75.2 74.7 36 75 75.2 74.4 73.2 72.4 70.7 70.6 69.8 68.4 68.1 68.6 69.4 69.2 69.3 70.9 71.8 72.6 74.3 72.7 70.7 69.4 68.7 66.9 64.9 65.1 66.3 67.4 67.6 70.9 63.7 64.4 64.3 63.4 68.7 68.9 70.1 71.7 68.3 72.4 71.9 71.9 74.7 76 76.3 76.3 78.1 73.5 77 74.8 75.3 75.2 75 74.8 74.7 74.5 73.8 73.8 73.6 69 68.7 68.5 68.2 68 67.8 67.6 67.1 66.6 66.4 66.1 65.6 65.3 65 64.7 64.6 56.2 55.9 55.6 55.3 55.1 54.9 54.7 54.5 54.3 54.1 53.8 53.4 52.9 54.4 53.9 53.9 54.1 54.3 54.4 54.1 53.1 52.1 51.6 52.4 53.4 54.3 54.6 54.8 55 55 55 54.9 55 53.4 51.4 52.8 53.4 53.5 49.1 49.1 49 48.9 48.8 48.7 48.4 48.3 48.2 48 47.6 47.8 48 48.4 47.7 50.2 50 50.2 48.8 49.4 49.1 50.4 51.6 47.8 49 49.8 49.6 49.6 49.8 50.2 50.6 51.6 51.7 52.1 52.8 53.8 53.4 54.9 54.2 57 56.8 56.7 56.6 56.7 56.7 56.6 52.3 52.6 52 51.7 51.7 51.3 50.8 50.3 51.5 51.7 51.6 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