Hole 1
Par 4 · 329 yd
Plays south. Dogleg right. Water.
Green 27 yd deep, 38 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Yankton, South Dakota, USA
18 holes, par 72, about 6,301 yards (5,762 metres) along the hole lines. The par 3s are 4, 8, 13 and 17. The par 5s are 3, 7, 10 and 14. The longest hole is the 3rd at 531 yd, the shortest the 8th at 143 yd. The map shows 14 bunkers. Water is in play on holes 1, 3, 4, 9, 13, 15 and 18.
Every hole, numbered, as the app draws it.
Each hole turned so it plays up the page, from the tee at the bottom. Every green's slopes are mapped: flip a card to see its green.
Par 4 · 329 yd
Plays south. Dogleg right. Water.
Green 27 yd deep, 38 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 371 yd
Plays west. Dogleg left.
Green 26 yd deep, 32 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 531 yd
Plays north-west. Dogleg right. Water.
Green 28 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 154 yd
Plays north-west. Water.
Green 31 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 376 yd
Plays north-west. Dogleg right. 1 bunker.
Green 38 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 337 yd
Plays south-east. 1 bunker.
Green 38 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 451 yd
Plays south-east. Dogleg left. 2 bunkers.
Green 26 yd deep, 16 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 143 yd
Plays north-east.
Green 27 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 410 yd
Plays north-east. Dogleg left. Water.
Green 38 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 468 yd
Plays north-west. Dogleg right.
Green 28 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 413 yd
Plays west. Dogleg right. 2 bunkers.
Green 27 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 363 yd
Plays east. 1 bunker.
Green 20 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 161 yd
Plays east. 1 bunker and water.
Green 30 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 518 yd
Plays south. Dogleg left. 2 bunkers.
Green 27 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 428 yd
Plays west. Water.
Green 28 yd deep, 31 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 322 yd
Plays south. 1 bunker.
Green 30 yd deep, 17 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 161 yd
Plays north. 2 bunkers.
Green 35 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 367 yd
Plays east. Dogleg left. Water.
Green 30 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Lengths are measured along each hole's line on OpenStreetMap, so they can differ from the club's card. A bunker between two holes counts on both.
The app
On your iPhone and Apple Watch, Number & Line turns this map into a yardage book, with distances to the front, middle and back of each green from where you stand. You can plan each hole at home and get club advice from your own distances and the day's wind.
The app is coming soon to the App Store, and this course is already built for it.

Course map © OpenStreetMap contributors, under the Open Database Licence. See it on OpenStreetMap, where anyone can correct it. Green slopes: USGS 3D Elevation Program 1 m DEM (public domain). Our maps are open data too. Number & Line isn't connected with the club.