Hole 1
Par 3 · 151 yd
Plays south-east. 3 bunkers.
Green 24 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Boxford, Massachusetts, USA
9 holes, par 36, about 3,211 yards (2,936 metres) along the hole lines. The par 3s are 1 and 8. The par 5s are 2 and 7. The longest hole is the 2nd at 550 yd, the shortest the 1st at 151 yd. The map shows 53 bunkers. Water is in play on holes 2, 3, 5, 6, 7, 8 and 9.
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 3 · 151 yd
Plays south-east. 3 bunkers.
Green 24 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 550 yd
Plays south-west. 1 bunker and water.
Green 31 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 435 yd
Plays north-west. 1 bunker and water.
Green 27 yd deep, 28 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 295 yd
Plays east. Dogleg right. 2 bunkers.
Green 28 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 370 yd
Plays south-west. 1 bunker and water.
Green 37 yd deep, 35 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 423 yd
Plays east. 3 bunkers and water.
Green 23 yd deep, 28 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 459 yd
Plays south-west. 1 bunker and water.
Green 34 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 192 yd
Plays north. Water.
Green 30 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 335 yd
Plays east. 1 bunker and water.
Green 34 yd deep, 23 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.