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Gwynedd — road climbs measured by LiDAR
All 147 published climbs in Gwynedd, ranked by their steepest 25 m and measured on the national 1 m LiDAR surveys.
Surface: · Caveated rows: (ranks stay the true ranks) · every published row is listed here — the toggles filter this page without hiding anything from the links above.
| # | Climb | County | Max 25 m | Length | Net rise | Overall | Evidence |
|---|---|---|---|---|---|---|---|
| 1 | Ffordd Pen Llech Guinness | Gwynedd | ≈caveated32.6% | 237 m | 41 m | 17.2% | Good |
| 2 | Discovered lane (52.7009, -4.0021) | Gwynedd | ≈caveated30.2% | 1624 m | 249 m | 15.3% | Needs confirmation |
| 3 | Heol Feurig | Gwynedd | ≈caveated30.0% | 284 m | 33 m | 11.5% | Good |
| 4 | Discovered lane (52.7658, -3.9416) | Gwynedd | ≈caveated28.7% | 1391 m | 141 m | 10.1% | Good |
| 5 | Panorama Walk | Gwynedd | ≈caveated28.6% | 1298 m | 89 m | 6.9% | Good |
| 6 | Discovered lane (52.5553, -4.0070) | Gwynedd | 28.1% | 1174 m | 160 m | 13.6% | Good |
| 7 | Llandecwyn to Bryn Bwbach° | Gwynedd | ≈caveated27.8% | 1271 m | 86 m | 6.8% | Good |
| 8 | Discovered lane (52.7522, -3.9595) | Gwynedd | ≈caveated27.2% | 523 m | 72 m | 13.7% | Good |
| 9 | Discovered lane (52.7921, -3.8885) | Gwynedd | 27.2% | 904 m | 117 m | 12.9% | Good |
| 10 | Llandderfel to Carnedd Wen° | Gwynedd | ≈caveated26.4% | 2906 m | 221 m | 7.6% | Good |
| 11 | Lon Cefn Ty | Gwynedd | ≈caveated25.9% | 1162 m | 87 m | 7.5% | Good |
| 12 | Discovered lane (52.8137, -4.5321) | Gwynedd | ≈caveated25.8% | 516 m | 40 m | 7.8% | Good |
| 13 | Discovered lane (52.9920, -4.4292) | Gwynedd | ≈caveated25.3% | 631 m | 92 m | 14.6% | Good |
| 14 | Lane near Maen-Offeren° | Gwynedd | 25.3% | 225 m | 29 m | 13.1% | High |
| 15 | Discovered lane (52.7451, -4.0041) | Gwynedd | ≈caveated25.1% | 1076 m | 134 m | 12.4% | Good |
| 16 | Allt Bron Philip | Gwynedd | ≈caveated25.0% | 1441 m | 139 m | 9.6% | Good |
| 17 | Discovered lane (52.6981, -3.6436) | Gwynedd | ≈caveated25.0% | 259 m | 44 m | 16.9% | Good |
| 18 | Llanberis to Dinas | Gwynedd | ≈caveated24.9% | 1233 m | 156 m | 12.7% | Good |
| 19 | Discovered lane (52.6792, -3.7557) | Gwynedd | ≈caveated24.8% | 3199 m | 259 m | 8.1% | Good |
| 20 | Prenteg to Cwm Ystradllyn° | Gwynedd | 24.7% | 2649 m | 238 m | 9.0% | Good |
| 21 | Discovered lane (52.7397, -4.0338) | Gwynedd | ≈caveated24.6% | 5075 m | 258 m | 5.1% | Good |
| 22 | Discovered lane (52.5572, -3.9923) | Gwynedd | 24.5% | 566 m | 81 m | 14.2% | Good |
| 23 | Discovered lane (52.8972, -3.5219) | Gwynedd | ≈caveated24.5% | 2978 m | 263 m | 8.8% | Good |
| 24 | Discovered lane (52.9471, -4.1135) | Gwynedd | ≈caveated24.5% | 350 m | 52 m | 14.9% | Good |
| 25 | Lane near Cwrt | Gwynedd | 24.4% | 1015 m | 94 m | 9.2% | High |
| 26 | Discovered lane (52.5954, -3.9201) | Gwynedd | 24.3% | 521 m | 60 m | 11.6% | High |
| 27 | Discovered lane (53.1120, -4.1906) | Gwynedd | ≈caveated24.2% | 676 m | 87 m | 12.8% | Good |
| 28 | Discovered lane (52.8859, -3.7758) | Gwynedd | ≈caveated24.1% | 1968 m | 147 m | 7.5% | Good |
| 29 | Discovered lane (53.0989, -4.1110) | Gwynedd | ≈caveated24.0% | 2253 m | 184 m | 8.2% | Good |
| 30 | Ffordd Tyddyn y Felin | Gwynedd | ≈caveated23.9% | 1818 m | 165 m | 9.1% | Good |
| 31 | Discovered lane (52.7368, -3.8754) | Gwynedd | ≈caveated23.8% | 1235 m | 130 m | 10.5% | Good |
| 32 | Garth Point to Hen Bentref Llandegfan° | Gwynedd | ≈caveated23.8% | 536 m | 60 m | 11.3% | Good |
| 33 | Bwlch y Groes° Wikipedia | Gwynedd | 23.8% | 1214 m | 188 m | 15.5% | High |
| 34 | Lon Golff | Gwynedd | 23.7% | 907 m | 59 m | 6.5% | Good |
| 35 | Discovered lane (52.9389, -3.5354) | Gwynedd | 23.7% | 521 m | 39 m | 7.4% | High |
| 36 | Discovered lane (52.7513, -3.8087) | Gwynedd | ≈caveated23.6% | 1440 m | 120 m | 8.3% | Good |
| 37 | Discovered lane (52.7361, -4.0242) | Gwynedd | ≈caveated23.5% | 318 m | 49 m | 15.4% | Good |
| 38 | Discovered lane (52.9668, -4.0434) | Gwynedd | 23.4% | 234 m | 28 m | 11.9% | High |
| 39 | Discovered lane (53.4029, -4.2964) | Gwynedd | 23.4% | 259 m | 40 m | 15.3% | High |
| 40 | Discovered lane (52.8170, -3.8631) | Gwynedd | ≈caveated23.4% | 977 m | 110 m | 11.3% | Good |
| 41 | Discovered lane (52.8188, -4.0742) | Gwynedd | ≈caveated23.3% | 2937 m | 123 m | 4.2% | Good |
| 42 | Discovered lane (52.8216, -4.6190) | Gwynedd | ≈caveated23.3% | 847 m | 119 m | 14.1% | Good |
| 43 | Lôn Goch | Gwynedd | ≈caveated23.2% | 1402 m | 140 m | 10.0% | Good |
| 44 | Discovered lane (52.8216, -4.6190) | Gwynedd | ≈caveated23.2% | 2007 m | 171 m | 8.5% | Good |
| 45 | Rhos-y-gwaliau to Is-Afon° | Gwynedd | 23.2% | 2365 m | 132 m | 5.6% | Good |
| 46 | Discovered lane (52.6545, -4.0923) | Gwynedd | ≈caveated23.1% | 886 m | 136 m | 15.4% | Good |
| 47 | Rhiw Staerdywyll | Gwynedd | ≈caveated23.1% | 1304 m | 110 m | 8.4% | Good |
| 48 | Discovered lane (52.7574, -3.9063) | Gwynedd | 22.9% | 364 m | 33 m | 9.1% | Good |
| 49 | Discovered lane (52.5471, -4.0357) | Gwynedd | ≈caveated22.9% | 1068 m | 138 m | 12.9% | Good |
| 50 | Clynnog Fawr to Bwlch Mawr° | Gwynedd | 22.8% | 3170 m | 192 m | 6.1% | High |
| 51 | Discovered lane (53.1277, -4.0317) | Gwynedd | 22.7% | 4276 m | 92 m | 2.2% | High |
| 52 | Discovered lane (52.8458, -3.6991) | Gwynedd | ≈caveated22.7% | 286 m | 45 m | 15.6% | Good |
| 53 | Discovered lane (52.7117, -4.0019) | Gwynedd | ≈caveated22.7% | 2677 m | 232 m | 8.7% | Good |
| 54 | Discovered lane (52.9814, -4.0391) | Gwynedd | 22.7% | 2874 m | 204 m | 7.1% | Good |
| 55 | Discovered lane (52.7259, -3.9513) | Gwynedd | ≈caveated22.7% | 796 m | 54 m | 6.8% | Good |
| 56 | Allt Goch Bach | Gwynedd | ≈caveated22.7% | 1292 m | 105 m | 8.1% | Good |
| 57 | Cwrt | Gwynedd | 22.7% | 235 m | 29 m | 12.4% | Good |
| 58 | Discovered lane (52.7610, -3.9023) | Gwynedd | 22.6% | 2752 m | 224 m | 8.1% | Good |
| 59 | Discovered lane (53.2197, -4.0495) | Gwynedd | ≈caveated22.6% | 1398 m | 109 m | 7.8% | Good |
| 60 | Discovered lane (52.7917, -3.7539) | Gwynedd | ≈caveated22.6% | 291 m | 31 m | 10.7% | Good |
| 61 | Discovered lane (53.0316, -4.0482) | Gwynedd | 22.5% | 1542 m | 115 m | 7.5% | High |
| 62 | Discovered lane (52.9635, -4.0440) | Gwynedd | ≈caveated22.4% | 1484 m | 165 m | 11.1% | Needs confirmation |
| 63 | Discovered lane (52.9389, -3.5388) | Gwynedd | ≈caveated22.4% | 529 m | 40 m | 7.7% | Good |
| 64 | Discovered lane (52.9541, -3.9595) | Gwynedd | ≈caveated22.4% | 2481 m | 172 m | 6.9% | Needs confirmation |
| 65 | Discovered lane (52.8733, -3.6267) | Gwynedd | 22.3% | 477 m | 60 m | 12.6% | High |
| 66 | Discovered lane (52.5596, -3.9819) | Gwynedd | ≈caveated22.3% | 1203 m | 121 m | 10.0% | Good |
| 67 | Yr Ocar | Gwynedd | 22.3% | 1254 m | 99 m | 7.9% | Good |
| 68 | Discovered lane (52.6456, -4.0674) | Gwynedd | 22.2% | 2884 m | 121 m | 4.2% | High |
| 69 | Ffordd Gerlan | Gwynedd | 22.1% | 608 m | 61 m | 10.0% | Good |
| 70 | Discovered lane (52.7980, -3.8697) | Gwynedd | ≈caveated22.1% | 2047 m | 173 m | 8.4% | Needs confirmation |
| 71 | Discovered lane (52.8576, -4.0958) | Gwynedd | ≈caveated22.0% | 1504 m | 159 m | 10.6% | Good |
| 72 | Pen Dref | Gwynedd | 22.0% | 1548 m | 158 m | 10.2% | Good |
| 73 | Eisingrug to Moel y Geifr° | Gwynedd | ≈caveated22.0% | 2149 m | 217 m | 10.1% | Good |
| 74 | Discovered lane (52.6708, -3.7208) | Gwynedd | ≈caveated22.0% | 1392 m | 168 m | 12.1% | Good |
| 75 | Discovered lane (53.1303, -4.2019) | Gwynedd | ≈caveated22.0% | 2157 m | 113 m | 5.2% | Good |
| 76 | Discovered lane (52.6925, -3.8327) | Gwynedd | ≈caveated22.0% | 3843 m | 281 m | 7.3% | Good |
| 77 | Discovered lane (52.7611, -3.9861) | Gwynedd | ≈caveated21.8% | 1177 m | 115 m | 9.8% | Good |
| 78 | Pandy to Pen y Gyrn° | Gwynedd | 21.8% | 992 m | 114 m | 11.5% | Needs confirmation |
| 79 | Twtil | Gwynedd | 21.8% | 351 m | 50 m | 14.1% | Good |
| 80 | Discovered lane (52.9755, -4.4566) | Gwynedd | 21.8% | 1709 m | 196 m | 11.5% | Good |
| 81 | Discovered lane (52.8177, -4.0842) | Gwynedd | ≈caveated21.4% | 659 m | 67 m | 10.2% | Good |
| 82 | Discovered lane (52.7589, -3.9759) | Gwynedd | ≈caveated21.4% | 925 m | 93 m | 10.1% | Good |
| 83 | Discovered lane (52.9928, -4.0797) | Gwynedd | ≈caveated21.4% | 1727 m | 131 m | 7.6% | Good |
| 84 | Discovered lane (52.8924, -3.6064) | Gwynedd | ≈caveated21.4% | 2477 m | 161 m | 6.5% | Good |
| 85 | Discovered lane (52.6669, -3.9618) | Gwynedd | ≈caveated21.4% | 1657 m | 92 m | 5.5% | Good |
| 86 | Discovered lane (52.5449, -4.0408) | Gwynedd | ≈caveated21.4% | 509 m | 62 m | 12.2% | Good |
| 87 | Discovered lane (52.6777, -4.0665) | Gwynedd | 21.3% | 3484 m | 262 m | 7.5% | High |
| 88 | Discovered lane (52.8716, -4.0695) | Gwynedd | 21.2% | 1140 m | 84 m | 7.4% | High |
| 89 | Discovered lane (52.8924, -4.6001) | Gwynedd | 21.1% | 940 m | 54 m | 5.7% | High |
| 90 | Fonllech Hir | Gwynedd | ≈caveated21.1% | 2523 m | 227 m | 9.0% | Needs confirmation |
| 91 | Discovered lane (52.7477, -3.9795) | Gwynedd | ≈caveated21.0% | 250 m | 32 m | 12.6% | Good |
| 92 | Discovered lane (52.7025, -3.6630) | Gwynedd | ≈caveated21.0% | 1519 m | 106 m | 7.0% | Good |
| 93 | Discovered lane (52.9013, -3.5797) | Gwynedd | 20.9% | 1428 m | 128 m | 9.0% | Good |
| 94 | Discovered lane (52.5495, -4.0210) | Gwynedd | 20.9% | 722 m | 91 m | 12.6% | Good |
| 95 | Discovered lane (52.7507, -4.0147) | Gwynedd | ≈caveated20.9% | 1216 m | 127 m | 10.5% | Good |
| 96 | Discovered lane (53.1830, -4.0959) | Gwynedd | ≈caveated20.8% | 470 m | 53 m | 11.2% | Good |
| 97 | Discovered lane (52.8303, -4.1035) | Gwynedd | ≈caveated20.8% | 547 m | 52 m | 9.5% | Good |
| 98 | Discovered lane (52.8063, -4.5065) | Gwynedd | ≈caveated20.8% | 935 m | 64 m | 6.8% | Good |
| 99 | Discovered lane (52.7858, -3.8744) | Gwynedd | ≈caveated20.8% | 1853 m | 139 m | 7.5% | Good |
| 100 | Love Lane | Gwynedd | 20.7% | 380 m | 36 m | 9.5% | Good |
| 101 | Discovered lane (52.8184, -4.0990) | Gwynedd | ≈caveated20.6% | 2819 m | 148 m | 5.2% | Good |
| 102 | Lane near Garndolbenmaen° | Gwynedd | 20.6% | 722 m | 65 m | 9.0% | High |
| 103 | Discovered lane (52.9423, -4.1366) | Gwynedd | ≈caveated20.5% | 1168 m | 122 m | 10.5% | Needs confirmation |
| 104 | Discovered lane (53.0059, -3.6373) | Gwynedd | 20.5% | 695 m | 32 m | 4.6% | High |
| 105 | Discovered lane (52.7901, -3.7860) | Gwynedd | ≈caveated20.5% | 1344 m | 127 m | 9.4% | Good |
| 106 | Discovered lane (52.8575, -4.6190) | Gwynedd | ≈caveated20.3% | 1301 m | 78 m | 6.0% | Good |
| 107 | Discovered lane (53.0270, -4.2648) | Gwynedd | 20.3% | 3933 m | 181 m | 4.6% | Good |
| 108 | Discovered lane (52.7620, -3.9788) | Gwynedd | 20.2% | 1394 m | 113 m | 8.1% | Good |
| 109 | Discovered lane (52.5872, -3.9052) | Gwynedd | 20.2% | 439 m | 59 m | 13.3% | Good |
| 110 | Discovered lane (52.9180, -4.0243) | Gwynedd | 20.2% | 3181 m | 201 m | 6.3% | Good |
| 111 | Discovered lane (52.9582, -3.5357) | Gwynedd | ≈caveated20.1% | 1387 m | 130 m | 9.4% | Good |
| 112 | Discovered lane (52.9964, -3.9324) | Gwynedd | 20.0% | 466 m | 43 m | 9.3% | High |
| 113 | Discovered lane (52.9412, -3.9732) | Gwynedd | ≈caveated20.0% | 1297 m | 102 m | 7.9% | Good |
| 114 | Lane near Dolgellau | Gwynedd | 19.9% | 234 m | 28 m | 12.2% | High |
| 115 | Clwt Rhywiog | Gwynedd | ≈caveated19.7% | 911 m | 78 m | 8.6% | Good |
| 116 | Discovered lane (52.9407, -4.5109) | Gwynedd | ≈caveated19.7% | 386 m | 40 m | 10.5% | Good |
| 117 | Discovered lane (52.9867, -4.0722) | Gwynedd | ≈caveated19.6% | 668 m | 43 m | 6.5% | Good |
| 118 | Discovered lane (53.1057, -4.2149) | Gwynedd | ≈caveated19.4% | 1738 m | 132 m | 7.6% | Good |
| 119 | Discovered lane (52.8209, -3.8422) | Gwynedd | ≈caveated19.2% | 2257 m | 157 m | 7.0% | Good |
| 120 | Discovered lane (52.7013, -4.0290) | Gwynedd | ≈caveated19.2% | 869 m | 74 m | 8.5% | Good |
| 121 | Crimea Pass (Bwlch y Gorddinan) Wikipedia | Gwynedd | ≈caveated19.1% | 2676 m | 260 m | 9.7% | Good |
| 122 | Ffordd Pen y Cefn | Gwynedd | ≈caveated19.0% | 810 m | 62 m | 7.7% | Good |
| 123 | Aberdyfi to Ffridd Cefn-isaf | Gwynedd | ≈caveated18.8% | 1552 m | 178 m | 11.5% | Good |
| 124 | Lane near Llanystumdwy | Gwynedd | ≈caveated18.5% | 555 m | 36 m | 6.4% | Good |
| 125 | Lôn Ty Mawr | Gwynedd | ≈caveated18.5% | 517 m | 49 m | 9.6% | Good |
| 126 | Discovered lane (52.9440, -4.1718) | Gwynedd | ≈caveated18.2% | 1379 m | 98 m | 7.1% | Good |
| 127 | Lôn Nant Stigallt | Gwynedd | ≈caveated18.0% | 906 m | 60 m | 6.6% | Good |
| 128 | Discovered lane (52.9120, -4.0334) | Gwynedd | ≈caveated18.0% | 809 m | 64 m | 7.9% | Good |
| 129 | Fronlief Hir | Gwynedd | ≈caveated17.9% | 1125 m | 94 m | 8.3% | Good |
| 130 | Discovered lane (52.9006, -3.6167) | Gwynedd | ≈caveated17.7% | 2076 m | 112 m | 5.4% | Good |
| 131 | Discovered lane (53.2249, -3.9851) | Gwynedd | ≈caveated17.2% | 1460 m | 132 m | 9.0% | Needs confirmation |
| 132 | Pen-y-Ffridd | Gwynedd | 17.0% | 1509 m | 154 m | 10.2% | Good |
| 133 | Discovered lane (52.7238, -3.6600) | Gwynedd | ≈caveated16.8% | 2405 m | 149 m | 6.2% | Needs confirmation |
| 134 | Fron Serth | Gwynedd | ≈caveated16.7% | 2685 m | 205 m | 7.6% | Good |
| 135 | Brynllys to Bwlch Oerddrws Wikipedia | Gwynedd | 16.5% | 5159 m | 248 m | 4.8% | Good |
| 136 | Sarn Mellteyrn to Mynydd Rhiw | Gwynedd | ≈caveated16.2% | 1785 m | 151 m | 8.5% | Good |
| 137 | Discovered lane (52.7803, -3.8011) | Gwynedd | ≈caveated16.0% | 2909 m | 214 m | 7.4% | Good |
| 138 | Discovered lane (52.7216, -3.7199) | Gwynedd | ≈caveated15.8% | 247 m | 29 m | 11.9% | Needs confirmation |
| 139 | Discovered lane (52.9865, -4.0697) | Gwynedd | ≈caveated15.7% | 1503 m | 68 m | 4.5% | Good |
| 140 | Discovered lane (53.2022, -4.3465) | Gwynedd | ≈caveated15.6% | 1069 m | 41 m | 3.8% | Good |
| 141 | Allt Goch Fawr | Gwynedd | ≈caveated15.0% | 1266 m | 83 m | 6.5% | Needs confirmation |
| 142 | Dolhendre to Carndochan | Gwynedd | ≈caveated14.6% | 642 m | 53 m | 8.3% | Good |
| 143 | Pen-y-Bryn to Foel Gron | Gwynedd | ≈caveated12.6% | 2291 m | 106 m | 4.6% | Good |
| 144 | Lon Bribwll | Gwynedd | ≈caveated12.1% | 635 m | 40 m | 6.3% | Good |
| 145 | Minffordd to Cwm Rhwyddfor° Wikipedia | Gwynedd | 12.0% | 2505 m | 148 m | 5.9% | High |
| 146 | Llanberis Pass° Wikipedia | Gwynedd | 11.3% | 1716 m | 86 m | 5.0% | High |
| 147 | Cell Fechan Road | Gwynedd | ≈caveated8.1% | 280 m | 29 m | 10.3% | Good |