Hole 1
Par 5 · 533 yd
Plays south-east. 2 bunkers.
Green 34 yd deep, 19 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Sterling, Massachusetts, USA
18 holes, par 71, about 6,532 yards (5,973 metres) along the hole lines. The par 3s are 5, 7, 11, 13 and 16. The par 5s are 1, 8, 10 and 18. The longest hole is the 18th at 566 yd, the shortest the 7th at 163 yd. The map shows 70 bunkers. Water is in play on holes 3, 5, 6, 10, 12, 14 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 5 · 533 yd
Plays south-east. 2 bunkers.
Green 34 yd deep, 19 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 429 yd
Plays east. 5 bunkers.
Green 23 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 307 yd
Plays north-west. Water.
Green 27 yd deep, 22 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 369 yd
Plays south-east. Dogleg left. 4 bunkers.
Green 33 yd deep, 22 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 187 yd
Plays north. 2 bunkers and water.
Green 36 yd deep, 23 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 387 yd
Plays south. Dogleg left. Water.
Green 37 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 163 yd
Plays south. 2 bunkers.
Green 35 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 528 yd
Plays north. Dogleg right. 7 bunkers.
Green 24 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 355 yd
Plays south-west. Dogleg left. 6 bunkers.
Green 31 yd deep, 22 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 474 yd
Plays north. Dogleg right. 4 bunkers and water.
Green 19 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 209 yd
Plays north-west. 4 bunkers.
Green 33 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 387 yd
Plays west. 4 bunkers and water.
Green 28 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 197 yd
Plays north-west. 4 bunkers.
Green 26 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 432 yd
Plays south. Dogleg left. 5 bunkers and water.
Green 34 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 440 yd
Plays south-east. 3 bunkers.
Green 31 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 180 yd
Plays south. 3 bunkers.
Green 35 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 389 yd
Plays north-west. Dogleg left. 5 bunkers and water.
Green 38 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 566 yd
Plays north-west. Dogleg right. 7 bunkers.
Green 35 yd deep, 23 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.