Hole 1
Par 4 · 460 yd
Plays south-west. 4 bunkers and water.
Green 28 yd deep, 35 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Compton, Maryland, USA
18 holes, par 72, about 7,055 yards (6,451 metres) along the hole lines. The par 3s are 5, 8, 11 and 15. The par 5s are 3, 7, 14 and 18. The longest hole is the 7th at 540 yd, the shortest the 5th at 191 yd. The map shows 53 bunkers. Water is in play on holes 1, 5, 7, 9, 11, 14, 15, 16 and 17.
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 · 460 yd
Plays south-west. 4 bunkers and water.
Green 28 yd deep, 35 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 428 yd
Plays south-west. 3 bunkers.
Green 33 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 496 yd
Plays north-east. 5 bunkers.
Green 38 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 423 yd
Plays south-west. Dogleg left. 4 bunkers.
Green 32 yd deep, 25 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 191 yd
Plays north-west. 2 bunkers and water.
Green 28 yd deep, 27 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 396 yd
Plays north. Dogleg right. 3 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 · 540 yd
Plays east. Dogleg right. 3 bunkers and water.
Green 26 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 209 yd
Plays west. 2 bunkers.
Green 30 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 414 yd
Plays east. Dogleg left. 4 bunkers and water.
Green 30 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 396 yd
Plays north. 2 bunkers.
Green 34 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 235 yd
Plays north. 2 bunkers and water.
Green 35 yd deep, 31 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 419 yd
Plays south. 4 bunkers.
Green 32 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 424 yd
Plays north. Dogleg left. 3 bunkers.
Green 30 yd deep, 23 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 499 yd
Plays north. 4 bunkers and 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 · 215 yd
Plays south. 2 bunkers and water.
Green 27 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 422 yd
Plays south-west. Dogleg left. 2 bunkers and water.
Green 33 yd deep, 15 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 395 yd
Plays south-west. 2 bunkers and water.
Green 27 yd deep, 23 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 490 yd
Plays east. Dogleg right. 4 bunkers.
Green 19 yd deep, 33 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.