Hole 1
Par 4 · 420 yd
Plays east. Dogleg right. 8 bunkers.
Green 35 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Billington Heights, New York, USA
18 holes, par 72, about 7,061 yards (6,457 metres) along the hole lines. The par 3s are 5, 7, 12 and 17. The par 5s are 2, 8, 14 and 16. The longest hole is the 2nd at 582 yd, the shortest the 12th at 173 yd. The map shows 90 bunkers. Water is in play on holes 2, 3, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17 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. Where a green's slopes are mapped, flip its card to see them.
Par 4 · 420 yd
Plays east. Dogleg right. 8 bunkers.
Green 35 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 582 yd
Plays east. Dogleg right. 1 bunker and water.
Green 28 yd deep, 42 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 348 yd
Plays south. Dogleg left. 7 bunkers and water.
Green 36 yd deep, 17 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 350 yd
Plays south. Dogleg right. 6 bunkers.
Green 39 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 210 yd
Plays north-west. 3 bunkers and water.
Green 35 yd deep, 36 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 405 yd
Plays north. Dogleg right. 5 bunkers and water.
Green 30 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 188 yd
Plays north. 3 bunkers and water.
Green 26 yd deep, 35 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 537 yd
Plays south-west. Dogleg left. 11 bunkers and water.
Par 4 · 399 yd
Plays north-west. Dogleg left. 6 bunkers.
Green 30 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 472 yd
Plays south. 3 bunkers and water.
Green 33 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 377 yd
Plays north-east. Dogleg right. 6 bunkers and water.
Green 26 yd deep, 33 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 173 yd
Plays south-west. 3 bunkers and water.
Green 40 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 475 yd
Plays east. 6 bunkers and water.
Green 35 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 510 yd
Plays south. 4 bunkers and water.
Green 46 yd deep, 33 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 428 yd
Plays north. Dogleg left. 4 bunkers and water.
Green 33 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 536 yd
Plays west. Dogleg left. 8 bunkers and water.
Green 43 yd deep, 24 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 214 yd
Plays north-east. 8 bunkers and water.
Green 24 yd deep, 44 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 440 yd
Plays north-west. Dogleg left. 3 bunkers and water.
Green 37 yd deep, 25 yd wide. Falls 1% 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.