Hole 1
Par 4 · 392 yd
Plays south. 6 bunkers and water.
Green 27 yd deep, 30 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Santee, California, USA
18 holes, par 72, about 6,668 yards (6,097 metres) along the hole lines. The par 3s are 2, 7, 12 and 17. The par 5s are 3, 9, 13 and 15. The longest hole is the 13th at 556 yd, the shortest the 17th at 144 yd. The map shows 92 bunkers. Water is in play on holes 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 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 · 392 yd
Plays south. 6 bunkers and water.
Green 27 yd deep, 30 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 166 yd
Plays north. 2 bunkers.
Green 46 yd deep, 32 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 510 yd
Plays south-west. 10 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 4 · 467 yd
Plays west. Dogleg right. 7 bunkers and water.
Green 31 yd deep, 31 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 276 yd
Plays north-west. Dogleg left. 5 bunkers and water.
Green 30 yd deep, 17 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 394 yd
Plays south-east. 6 bunkers and water.
Green 31 yd deep, 27 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 199 yd
Plays east. 7 bunkers and water.
Green 31 yd deep, 33 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 336 yd
Plays east. 2 bunkers and water.
Green 34 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 523 yd
Plays north-east. Dogleg left. 9 bunkers and water.
Green 32 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 431 yd
Plays south. Dogleg left. 6 bunkers and water.
Green 27 yd deep, 31 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 344 yd
Plays north. Dogleg right. 7 bunkers and water.
Green 30 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 166 yd
Plays south-west. 2 bunkers and water.
Green 43 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 556 yd
Plays north-east. Dogleg right. 10 bunkers and water.
Green 40 yd deep, 26 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 457 yd
Plays south-west. 6 bunkers.
Green 35 yd deep, 27 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 537 yd
Plays north-east. 8 bunkers.
Green 24 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 338 yd
Plays north. 7 bunkers.
Green 26 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 144 yd
Plays south. 3 bunkers.
Green 30 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 434 yd
Plays west. 9 bunkers and water.
Green 40 yd deep, 35 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.