Hole 1
Par 4 · 394 yd
Plays north-east. 3 bunkers.
Green 30 yd deep, 30 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Mountainside, New Jersey, USA
18 holes, par 71, about 7,064 yards (6,459 metres) along the hole lines. The par 3s are 3, 7, 14 and 17. The par 5s are 2, 11 and 12. The longest hole is the 12th at 588 yd, the shortest the 3rd at 135 yd. The map shows 75 bunkers. Water is in play on holes 14 and 15.
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 · 394 yd
Plays north-east. 3 bunkers.
Green 30 yd deep, 30 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 501 yd
Plays south-west. 7 bunkers.
Green 36 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 135 yd
Plays south-west. 3 bunkers.
Green 27 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 480 yd
Plays north-east. 5 bunkers.
Green 35 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 402 yd
Plays south-west. 5 bunkers.
Green 32 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 427 yd
Plays south-west. Dogleg left. 4 bunkers.
Green 27 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 171 yd
Plays north-west. 6 bunkers.
Green 26 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 383 yd
Plays north-west. Dogleg left. 2 bunkers.
Green 28 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 446 yd
Plays north-east. Dogleg left. 6 bunkers.
Green 32 yd deep, 23 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 425 yd
Plays south-west. 6 bunkers.
Green 33 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 545 yd
Plays east. Dogleg right. 7 bunkers.
Green 38 yd deep, 31 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 588 yd
Plays west. 7 bunkers.
Green 35 yd deep, 32 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 459 yd
Plays south-east. 4 bunkers.
Green 36 yd deep, 25 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 244 yd
Plays south-west. 2 bunkers and water.
Green 37 yd deep, 21 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 457 yd
Plays north-west. 5 bunkers and water.
Green 42 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 387 yd
Plays north-east. Dogleg left. 5 bunkers.
Green 33 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 187 yd
Plays north-east. 4 bunkers.
Green 23 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 433 yd
Plays north-east. 9 bunkers.
Green 40 yd deep, 17 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; the course's name from OpenGolfAPI, under the same 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.