The N-621 (Carretera Nueva) on a motorcycle
Our routes ride 51 miles of the N-621 (Leon, Tras-os-Montes and the Douro, Spain). Its longest stretch on our routes turns 306 degrees a mile, in the twistiest third of the 151 roads we track.
- On our routes
- 51 miles
- Curvature
- 306 ° a mile
- Twistiness rank
- 17 of 151
- Longest gap between fuel
- 34 miles
The N-621 is drawn in black where our routes use it. Red lines are the full routes; click one to open it.
Routes that ride the N-621
| Route | Miles on the N-621 | |
|---|---|---|
| Santander to Portugal and the Douro828 miles in all | 51 | GPX |
| Picos de Europa124 miles in all | 51 | GPX |
Passes on the N-621
- Puerto de San Glorio1,599 m
How we measure it
Curvature is the total change of direction along the road, in degrees for every mile, measured on the route line every 100 metres. Gentle drift under 3 degrees is ignored, so a long sweeping bend counts for less than a run of tight ones. On our routes they run from 6 on the E19 to 701 on the SP638.
Fuel counts stations within 1 km of the line on its longest stretch on our routes (34 miles), from OpenStreetMap. There are 1 on that stretch.