Hole 1
Par 4 · 343 yd
Plays north-west. Dogleg right. 4 bunkers.
Green 32 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Sun Valley, Idaho, USA
18 holes, par 72, about 5,876 yards (5,373 metres) along the hole lines. The par 3s are 3, 6, 11 and 14. The par 5s are 5, 7, 13 and 18. The longest hole is the 5th at 515 yd, the shortest the 11th at 105 yd. The map shows 97 bunkers. Water is in play on holes 11, 13 and 14.
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 · 343 yd
Plays north-west. Dogleg right. 4 bunkers.
Green 32 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 280 yd
Plays north. Dogleg right. 8 bunkers.
Green 32 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 174 yd
Plays south. 3 bunkers.
Green 45 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 339 yd
Plays north. Dogleg left. 7 bunkers.
Green 34 yd deep, 34 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 515 yd
Plays north-west. 7 bunkers.
Green 37 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 127 yd
Plays south-east. 4 bunkers.
Green 35 yd deep, 32 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 452 yd
Plays south-east. 8 bunkers.
Green 33 yd deep, 32 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 392 yd
Plays south-east. 7 bunkers.
Green 36 yd deep, 33 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 388 yd
Plays south. Dogleg right. 6 bunkers.
Green 36 yd deep, 36 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 294 yd
Plays south-east. 5 bunkers.
Green 34 yd deep, 35 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 105 yd
Plays south. 3 bunkers and water.
Green 34 yd deep, 35 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 365 yd
Plays east. Dogleg left. 7 bunkers.
Green 39 yd deep, 33 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 456 yd
Plays south-west. Dogleg left. 7 bunkers and water.
Green 28 yd deep, 30 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 164 yd
Plays south-west. 1 bunker and water.
Green 31 yd deep, 30 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 330 yd
Plays south-west. 3 bunkers.
Green 26 yd deep, 42 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 308 yd
Plays north-east. 4 bunkers.
Green 39 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 370 yd
Plays north. Dogleg left. 6 bunkers.
Green 39 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 475 yd
Plays north-west. 8 bunkers.
Green 30 yd deep, 33 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.