Hole 1
Par 4 · 375 yd
Plays south-west. 4 bunkers.
Green 34 yd deep, 26 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in El Cajon, California, USA
18 holes, par 72, about 6,736 yards (6,159 metres) along the hole lines. The par 3s are 6, 9, 12 and 18. The par 5s are 5, 8, 10 and 17. The longest hole is the 17th at 546 yd, the shortest the 18th at 166 yd. The map shows 49 bunkers. Water is in play on holes 4, 5, 6, 7, 8, 9, 10 and 12.
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 · 375 yd
Plays south-west. 4 bunkers.
Green 34 yd deep, 26 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 331 yd
Plays south-east. Dogleg left. 2 bunkers.
Green 42 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 395 yd
Plays south-east. 2 bunkers.
Green 43 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 324 yd
Plays south. 3 bunkers and water.
Green 38 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 517 yd
Plays north. Dogleg left. 4 bunkers and water.
Green 36 yd deep, 33 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 188 yd
Plays west. 3 bunkers and water.
Green 39 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 420 yd
Plays south. Dogleg right. 6 bunkers and water.
Green 38 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 540 yd
Plays north. 3 bunkers and water.
Green 37 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 184 yd
Plays east. 2 bunkers and water.
Green 35 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 507 yd
Plays south. Dogleg right. 4 bunkers and water.
Green 39 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 416 yd
Plays south-east. Dogleg left. 4 bunkers.
Green 37 yd deep, 33 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 188 yd
Plays west. 2 bunkers and water.
Green 38 yd deep, 30 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 434 yd
Plays north-west. 3 bunkers.
Green 33 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 353 yd
Plays north-east. Dogleg left. 1 bunker.
Green 31 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 401 yd
Plays south-west. Dogleg right. 2 bunkers.
Green 34 yd deep, 30 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 449 yd
Plays north. 2 bunkers.
Green 35 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 546 yd
Plays north-west. 4 bunkers.
Green 34 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 166 yd
Plays north-east. 2 bunkers.
Green 38 yd deep, 30 yd wide. Falls 4% 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.