Hole 1
Par 4 · 234 yd
Plays east. 2 bunkers.
Green 20 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Westford, Massachusetts, USA
9 holes, par 35, about 2,719 yards (2,486 metres) along the hole lines. The par 3s are 2 and 6. The only par 5 is the 3rd. The longest hole is the 3rd at 418 yd, the shortest the 2nd at 147 yd. The map shows 30 bunkers. Water is in play on holes 5 and 7.
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 · 234 yd
Plays east. 2 bunkers.
Green 20 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 147 yd
Plays north. 7 bunkers.
Green 20 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 418 yd
Plays north-west. Dogleg right. 8 bunkers.
Green 24 yd deep, 16 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 349 yd
Plays south-west. 7 bunkers.
Green 25 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 393 yd
Plays south. Dogleg right. Water.
Green 22 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 221 yd
Plays north-east. 2 bunkers.
Green 22 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 304 yd
Plays north-west. 5 bunkers and water.
Green 20 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 328 yd
Plays east. 9 bunkers.
Green 19 yd deep, 15 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 325 yd
Plays west. 5 bunkers.
Green 20 yd deep, 20 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.