Great Sand Dunes
Alamosa, Colorado, USA
Great Sand Dunes
Distance: 41.92 km
Elevation Gain: 387 m
Elevation Loss: 283 m
Difficulty:
232 (Easy)
FIETS Index: 0.13 FIETS
Avg Grade: 0.63 %
Max cat climb: 3
Min elevation: 2331 m
Max elevation: 2538 m
Ride Category:
Rollers
A very unique place, tallest sand dunes in US (750 feet or 229 m) are located in Colorado. At around 2500m elevation at the base, top of the dunes is just about as high as Stelvio. Located in magical San Luis Valley, which is a tectonic gash that splits the southern Rocky Mountains. The San Luis Valley has been called the highest, largest mountain desert in North America, and is the largest high-elevation valley in the world. The valley encompasses about 8000 square miles (~20,000 km2), roughly the size of Massachusetts, and elevations on the valley floor range 7500 to 7800 feet. The surrounding San Juan and Sangre de Cristo mountain ranges summit over 14,000 feet (>4250 m), which creates an intense rain-shadow effect in the valley.
| Rank | Rider | Date | Time | Power | W/kg | Speed |
|---|---|---|---|---|---|---|
| 🥇 | Jochen Wolf | Jan 30, 2019 | 01:08:12 | 322 W | 3.88 w/kg | 36.87 km/h |
| 🥈 | Des Garrett | Jul 21, 2018 | 01:08:57 | 326 W | 3.28 w/kg | 36.47 km/h |
| 🥉 | Homo Rotulans | May 06, 2020 | 01:09:19 | 308 W | 4.11 w/kg | 36.28 km/h |
| 4 | R VB | Dec 14, 2018 | 01:10:49 | 302 W | 3.55 w/kg | 35.51 km/h |
| 5 | Douglas Forer | Jan 05, 2022 | 01:10:58 | 294 W | 3.63 w/kg | 35.43 km/h |
| 6 | stephansluijmers@xs4all.nl | Jan 20, 2019 | 01:11:18 | 302 W | 3.25 w/kg | 35.27 km/h |
| 7 | Chris | Dec 01, 2023 | 01:13:36 | 259 W | 3.46 w/kg | 34.17 km/h |
| 8 | Tigo Star | Aug 31, 2021 | 01:14:19 | 249 W | 3.51 w/kg | 33.84 km/h |
| 9 | Igor Tatarinov | May 22, 2020 | 01:14:25 | 269 W | 3.29 w/kg | 33.79 km/h |
| 10 | Tom Smeets | Jun 21, 2018 | 01:14:56 | 243 W | 3.33 w/kg | 33.56 km/h |
| 11 | Graham Lowe | Sep 16, 2018 | 01:15:16 | 282 W | 2.97 w/kg | 33.41 km/h |
| 12 | Geir Skaugen | Aug 21, 2018 | 01:15:33 | 258 W | 2.87 w/kg | 33.28 km/h |
| 13 | Youri Tromp | Mar 13, 2019 | 01:15:49 | 256 W | 2.98 w/kg | 33.17 km/h |
| 14 | robbie mores | Feb 10, 2019 | 01:16:14 | 243 W | 3.63 w/kg | 32.99 km/h |
| 15 | Paweł Lewicki | Mar 09, 2019 | 01:16:25 | 252 W | 3.15 w/kg | 32.91 km/h |
| 16 | Michael Graves | Jan 13, 2021 | 01:18:16 | 250 W | 2.48 w/kg | 32.13 km/h |
| 17 | Joe Calderwood | Apr 27, 2021 | 01:18:26 | 231 W | 2.43 w/kg | 32.06 km/h |
| 18 | Jos Tusveld | Nov 13, 2023 | 01:18:26 | 226 W | 2.86 w/kg | 32.06 km/h |
| 19 | Marc Verlaan | Nov 25, 2018 | 01:19:22 | 204 W | 3.34 w/kg | 31.68 km/h |
| 20 | Martin Budd | Jul 06, 2018 | 01:19:28 | 215 W | 3.00 w/kg | 31.64 km/h |
| 21 | D Speelman | Jan 19, 2025 | 01:19:33 | 219 W | 2.81 w/kg | 31.61 km/h |
| 22 | C Nederkoorn | Jan 29, 2019 | 01:19:44 | 217 W | 2.97 w/kg | 31.54 km/h |
| 23 | Sławek Bikeman | Apr 12, 2020 | 01:20:11 | 220 W | 2.86 w/kg | 31.36 km/h |
| 24 | Franz Filzw. | Jan 14, 2019 | 01:20:12 | 226 W | 2.76 w/kg | 31.35 km/h |
| 25 | Indalecio Lekerika | Oct 15, 2021 | 01:20:16 | 201 W | 3.53 w/kg | 31.33 km/h |
| 26 | Bart Koekkoek | Sep 12, 2018 | 01:20:46 | 224 W | 2.36 w/kg | 31.13 km/h |
| 27 | Piet van Hulst | Feb 01, 2019 | 01:21:23 | 199 W | 2.93 w/kg | 30.90 km/h |
| 28 | Silvano Turati | Dec 31, 2018 | 01:21:24 | 195 W | 3.25 w/kg | 30.89 km/h |
| 29 | Erik Sundt | May 06, 2020 | 01:21:29 | 217 W | 2.49 w/kg | 30.86 km/h |
| 30 | B E | Nov 11, 2018 | 01:21:31 | 204 W | 2.87 w/kg | 30.85 km/h |
| 31 | Carlos Ferreira | Apr 02, 2019 | 01:21:31 | 208 W | 2.85 w/kg | 30.85 km/h |
| 32 | Jörg Schädlich | Dec 12, 2020 | 01:21:39 | 201 W | 2.68 w/kg | 30.80 km/h |
| 33 | Emiel Keizer | Jun 02, 2022 | 01:22:04 | 200 W | 2.94 w/kg | 30.64 km/h |
| 34 | Eric Green | Nov 19, 2023 | 01:22:05 | 206 W | 2.75 w/kg | 30.63 km/h |
| 35 | john guinn | Oct 04, 2018 | 01:22:07 | 190 W | 3.17 w/kg | 30.62 km/h |
| 36 | Bertrand Falentin | May 11, 2021 | 01:22:48 | 198 W | 2.71 w/kg | 30.37 km/h |
| 37 | Uwe Altmann | Oct 20, 2019 | 01:22:52 | 198 W | 2.54 w/kg | 30.35 km/h |
| 38 | Rainer Klee | Nov 10, 2023 | 01:22:52 | 206 W | 2.42 w/kg | 30.34 km/h |
| 39 | Yves Livernois | Nov 18, 2018 | 01:22:59 | 200 W | 2.67 w/kg | 30.30 km/h |
| 40 | Laurent Arzur | Aug 31, 2023 | 01:23:18 | 199 W | 2.65 w/kg | 30.19 km/h |
| 41 | Louis Dupuis | Aug 02, 2018 | 01:23:33 | 185 W | 2.72 w/kg | 30.10 km/h |
| 42 | Yves Verstuyf | Dec 09, 2018 | 01:23:44 | 217 W | 2.17 w/kg | 30.03 km/h |
| 43 | Glenn Sliva | Nov 25, 2018 | 01:23:49 | 189 W | 2.78 w/kg | 30.00 km/h |
| 44 | Bart De Wachter | Feb 14, 2021 | 01:23:49 | 195 W | 2.29 w/kg | 30.00 km/h |
| 45 | Peter Verstraete | Nov 23, 2020 | 01:24:13 | 208 W | 2.26 w/kg | 29.86 km/h |
| 46 | José Fernandez | Feb 17, 2021 | 01:24:15 | 194 W | 2.43 w/kg | 29.85 km/h |
| 47 | GoustiFruit ⓋⒺⒼⒶⓃ | Mar 12, 2020 | 01:24:19 | 192 W | 2.91 w/kg | 29.82 km/h |
| 48 | Mikkel Porse Rasmussen | Jan 06, 2019 | 01:24:29 | 194 W | 2.49 w/kg | 29.76 km/h |
| 49 | Maciej Czerwiński | Feb 03, 2022 | 01:24:49 | 227 W | 2.06 w/kg | 29.65 km/h |
| 50 | Eric Lanier | Aug 26, 2018 | 01:25:09 | 179 W | 2.49 w/kg | 29.53 km/h |
| 51 | Aleman (CycleChat) | Aug 12, 2018 | 01:25:18 | 185 W | 2.82 w/kg | 29.48 km/h |
| 52 | Alexey Demenev | Sep 20, 2018 | 01:25:30 | 195 W | 2.17 w/kg | 29.41 km/h |
| 53 | David Martínez Soto | Jun 21, 2021 | 01:25:30 | 178 W | 2.62 w/kg | 29.41 km/h |
| 54 | J F | Oct 07, 2022 | 01:25:35 | 194 W | 2.20 w/kg | 29.38 km/h |
| 55 | Christopher Epo | Jun 23, 2018 | 01:25:59 | 188 W | 2.19 w/kg | 29.25 km/h |
| 56 | Fabio Zanirato | Dec 25, 2022 | 01:26:00 | 161 W | 2.88 w/kg | 29.24 km/h |
| 57 | Markus Geiger | Nov 08, 2023 | 01:26:03 | 187 W | 2.40 w/kg | 29.22 km/h |
| 58 | Frank S | Dec 06, 2024 | 01:26:04 | 197 W | 2.24 w/kg | 29.22 km/h |
| 59 | Roman Mospan | Dec 04, 2024 | 01:26:13 | 187 W | 2.49 w/kg | 29.17 km/h |
| 60 | Cédric Lamathe | Oct 07, 2020 | 01:26:22 | 173 W | 2.70 w/kg | 29.12 km/h |
| 61 | Marcin Spychała | Mar 20, 2021 | 01:26:23 | 206 W | 1.96 w/kg | 29.11 km/h |
| 62 | Robert Rheault | Nov 10, 2023 | 01:26:53 | 172 W | 2.65 w/kg | 28.94 km/h |
| 63 | Jan Theron | Nov 28, 2023 | 01:26:55 | 174 W | 2.49 w/kg | 28.93 km/h |
| 64 | Paul B | Jan 31, 2020 | 01:27:00 | 201 W | 2.28 w/kg | 28.90 km/h |
| 65 | Goran Meglaj | Jan 07, 2020 | 01:27:04 | 177 W | 2.33 w/kg | 28.88 km/h |
| 66 | Marnix van Voorbergen | Nov 17, 2020 | 01:27:09 | 195 W | 2.17 w/kg | 28.85 km/h |
| 67 | tony court | Jan 23, 2021 | 01:27:15 | 186 W | 2.07 w/kg | 28.82 km/h |
| 68 | Tommy Donald | Dec 16, 2018 | 01:27:17 | 179 W | 2.39 w/kg | 28.81 km/h |
| 69 | Rémy Jouanne | Dec 16, 2023 | 01:27:59 | 165 W | 2.70 w/kg | 28.58 km/h |
| 70 | Matthias Marquardt | Aug 25, 2018 | 01:28:04 | 169 W | 2.52 w/kg | 28.55 km/h |
| 71 | Artur Chmielewski | Apr 19, 2022 | 01:28:08 | 164 W | 2.78 w/kg | 28.53 km/h |
| 72 | Eva Klusoňová | Nov 04, 2021 | 01:28:20 | 173 W | 2.31 w/kg | 28.47 km/h |
| 73 | Sergio Real | Jul 28, 2018 | 01:28:21 | 168 W | 2.33 w/kg | 28.46 km/h |
| 74 | Michel Zweers | Nov 21, 2018 | 01:28:29 | 174 W | 2.32 w/kg | 28.42 km/h |
| 75 | Tomasz Em | Mar 08, 2020 | 01:28:34 | 195 W | 2.05 w/kg | 28.39 km/h |
| 76 | Tony Barlow | Jan 25, 2019 | 01:28:40 | 170 W | 2.14 w/kg | 28.36 km/h |
| 77 | Mike 8008 | Jan 14, 2025 | 01:29:14 | 181 W | 2.13 w/kg | 28.18 km/h |
| 78 | John Hawkins | Feb 02, 2021 | 01:29:17 | 170 W | 2.24 w/kg | 28.16 km/h |
| 79 | Tassos Klitsinaris | Jul 29, 2018 | 01:29:19 | 174 W | 2.23 w/kg | 28.15 km/h |
| 80 | Hendrik Thielemann | Jan 31, 2025 | 01:29:23 | 172 W | 2.23 w/kg | 28.13 km/h |
| 81 | Gu Po Muc | Feb 04, 2022 | 01:29:30 | 169 W | 2.25 w/kg | 28.10 km/h |
| 82 | Witold Glonek | Jan 29, 2022 | 01:29:49 | 165 W | 2.17 w/kg | 28.00 km/h |
| 83 | Dariusz Kozioł | Feb 10, 2021 | 01:30:05 | 170 W | 2.05 w/kg | 27.91 km/h |
| 84 | Dru Dixon | Dec 20, 2023 | 01:30:19 | 162 W | 2.40 w/kg | 27.84 km/h |
| 85 | Michael Novich | Aug 16, 2024 | 01:31:28 | 182 W | 1.71 w/kg | 27.49 km/h |
| 86 | Mark Barton | Sep 16, 2019 | 01:31:36 | 181 W | 2.03 w/kg | 27.45 km/h |
| 87 | MB | Feb 20, 2022 | 01:31:42 | 148 W | 2.24 w/kg | 27.42 km/h |
| 88 | Petro Mol | Nov 10, 2023 | 01:31:49 | 176 W | 1.85 w/kg | 27.39 km/h |
| 89 | David Neilson | Apr 06, 2024 | 01:31:56 | 150 W | 2.14 w/kg | 27.35 km/h |
| 90 | Hans Petiet | Sep 11, 2018 | 01:32:12 | 154 W | 2.17 w/kg | 27.27 km/h |
| 91 | Ron Peterson | Jan 31, 2020 | 01:32:52 | 163 W | 1.77 w/kg | 27.08 km/h |
| 92 | JJosef Kluson | Apr 04, 2021 | 01:32:53 | 152 W | 2.03 w/kg | 27.07 km/h |
| 93 | Paul Smith | Jan 01, 2021 | 01:33:40 | 168 W | 1.85 w/kg | 26.85 km/h |
| 94 | Lesquale | Mar 25, 2021 | 01:34:06 | 157 W | 1.80 w/kg | 26.72 km/h |
| 95 | Jos Carboex | May 02, 2021 | 01:34:06 | 154 W | 2.05 w/kg | 26.72 km/h |
| 96 | Peter Hasperhoven | Jan 16, 2019 | 01:34:15 | 150 W | 1.90 w/kg | 26.68 km/h |
| 97 | Combat-18 GYM | Feb 01, 2019 | 01:34:40 | 155 W | 2.07 w/kg | 26.56 km/h |
| 98 | John Savill | Nov 17, 2022 | 01:34:48 | 153 W | 1.91 w/kg | 26.53 km/h |
| 99 | Sir Steve | Jan 17, 2021 | 01:35:12 | 148 W | 1.97 w/kg | 26.41 km/h |
| 100 | George Bussey | Jul 29, 2021 | 01:35:25 | 156 W | 1.75 w/kg | 26.35 km/h |
| 101 | patrizio magi | May 22, 2020 | 01:35:29 | 148 W | 2.11 w/kg | 26.34 km/h |
| 102 | ricrog | Dec 07, 2018 | 01:35:56 | 169 W | 1.69 w/kg | 26.21 km/h |
| 103 | Asa Post | Sep 22, 2019 | 01:36:06 | 138 W | 2.06 w/kg | 26.17 km/h |
| 104 | Scott Flory | Mar 09, 2019 | 01:36:09 | 148 W | 1.88 w/kg | 26.15 km/h |
| 105 | Frederik Vanrietvelde | Dec 24, 2023 | 01:36:20 | 139 W | 1.99 w/kg | 26.10 km/h |
| 106 | Paul Brooks | May 06, 2019 | 01:36:22 | 143 W | 2.07 w/kg | 26.09 km/h |
| 107 | Michael Spyra | Jan 15, 2021 | 01:36:22 | 156 W | 1.75 w/kg | 26.09 km/h |
| 108 | Flaviu Bozga | Dec 19, 2024 | 01:36:59 | 147 W | 1.96 w/kg | 25.93 km/h |
| 109 | Ricardo Troccoli | Jun 05, 2020 | 01:37:29 | 137 W | 1.90 w/kg | 25.79 km/h |
| 110 | Jomi Hastert | Aug 18, 2021 | 01:37:29 | 138 W | 1.89 w/kg | 25.80 km/h |
| 111 | David Kings | Aug 11, 2018 | 01:38:16 | 154 W | 1.73 w/kg | 25.59 km/h |
| 112 | Simon Law | Feb 03, 2021 | 01:39:45 | 153 W | 1.60 w/kg | 25.21 km/h |
| 113 | Edward Redfoot | May 22, 2022 | 01:40:39 | 130 W | 1.86 w/kg | 24.98 km/h |
| 114 | Hans Couvreur | Nov 17, 2022 | 01:41:02 | 135 W | 1.65 w/kg | 24.89 km/h |
| 115 | Sylvain GESBERT | Dec 05, 2018 | 01:41:26 | 146 W | 1.54 w/kg | 24.79 km/h |
| 116 | Robert Francis | Apr 27, 2021 | 01:42:16 | 147 W | 1.31 w/kg | 24.59 km/h |
| 117 | Paul Woolgar | Aug 15, 2018 | 01:42:46 | 135 W | 1.52 w/kg | 24.47 km/h |
| 118 | Lee Trumpore | Dec 17, 2018 | 01:43:59 | 124 W | 1.82 w/kg | 24.18 km/h |
| 119 | Joseph | Oct 22, 2022 | 01:44:40 | 123 W | 1.68 w/kg | 24.02 km/h |
| 120 | W van Koetsveld | Jan 21, 2024 | 01:44:41 | 121 W | 1.61 w/kg | 24.02 km/h |
| 121 | Jaroslav Španko | May 14, 2020 | 01:45:01 | 129 W | 1.47 w/kg | 23.94 km/h |
| 122 | Anne-Sophie Farine | Jun 15, 2025 | 01:47:05 | 103 W | 1.94 w/kg | 23.48 km/h |
| 123 | Gabriele M | Jul 29, 2018 | 01:49:20 | 111 W | 1.52 w/kg | 23.00 km/h |
| 124 | Jane Simms | Dec 27, 2019 | 01:58:39 | 98 W | 1.29 w/kg | 21.19 km/h |
| 125 | Richatd Thorndale | Sep 16, 2020 | 02:06:45 | 120 W | 0.94 w/kg | 19.84 km/h |
| 126 | Sonja Thoms | Dec 11, 2021 | 02:11:26 | 81 W | 1.08 w/kg | 19.13 km/h |
| 127 | kc Claffy | Dec 14, 2020 | 02:20:34 | 71 W | 0.95 w/kg | 17.89 km/h |
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