Hole 1
Par 4 · 386 yd
Plays north. 4 bunkers and water.
Green 26 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Helendale, California, USA
18 holes, par 72, about 6,263 yards (5,727 metres) along the hole lines. The par 3s are 5, 8, 13 and 17. The par 5s are 2, 7, 10 and 14. The longest hole is the 10th at 544 yd, the shortest the 5th at 130 yd. The map shows 54 bunkers. Water is in play on holes 1, 5, 13 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 · 386 yd
Plays north. 4 bunkers and water.
Green 26 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 474 yd
Plays west. 4 bunkers.
Green 26 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 347 yd
Plays north. 4 bunkers.
Green 26 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 307 yd
Plays west. Dogleg right. 2 bunkers.
Green 30 yd deep, 17 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 130 yd
Plays south. 2 bunkers and water.
Green 30 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 398 yd
Plays south. 3 bunkers.
Green 25 yd deep, 17 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 507 yd
Plays east. Dogleg right. 4 bunkers.
Green 24 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 199 yd
Plays north-west. 4 bunkers.
Green 24 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 373 yd
Plays south-east. 3 bunkers.
Green 32 yd deep, 20 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 544 yd
Plays east. Dogleg right. 3 bunkers.
Green 25 yd deep, 19 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 335 yd
Plays west. 3 bunkers.
Green 30 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 409 yd
Plays north-east. Dogleg right. 5 bunkers.
Green 28 yd deep, 20 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 144 yd
Plays north. 2 bunkers and water.
Green 26 yd deep, 24 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 492 yd
Plays west. 4 bunkers.
Green 28 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 326 yd
Plays west. 5 bunkers.
Green 26 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 366 yd
Plays east. 5 bunkers.
Green 27 yd deep, 24 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 178 yd
Plays south. 2 bunkers.
Green 31 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 346 yd
Plays south-west. 2 bunkers and water.
Green 31 yd deep, 19 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. Pars are 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.