Hole 1
Par 4 · 416 yd
Plays east. 3 bunkers.
Green 26 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Canton, Massachusetts, USA
18 holes, par 72, about 6,697 yards (6,124 metres) along the hole lines. The par 3s are 2, 8, 12 and 16. The par 5s are 3, 9, 11 and 13. The longest hole is the 9th at 512 yd, the shortest the 12th at 177 yd. The map shows 97 bunkers. Water is in play on holes 10 and 13.
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 · 416 yd
Plays east. 3 bunkers.
Green 26 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 178 yd
Plays east. 3 bunkers.
Green 30 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 499 yd
Plays south-east. Dogleg left. 3 bunkers.
Green 25 yd deep, 28 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 334 yd
Plays south-east. Dogleg left. 6 bunkers.
Green 34 yd deep, 28 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 394 yd
Plays south-east. Dogleg left. 4 bunkers.
Green 32 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 433 yd
Plays west. Dogleg left. 2 bunkers.
Green 26 yd deep, 27 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 401 yd
Plays west. Dogleg left. 4 bunkers.
Green 28 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 190 yd
Plays north-west. 5 bunkers.
Green 34 yd deep, 33 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 512 yd
Plays north-west. 4 bunkers.
Green 24 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 414 yd
Plays south-east. Dogleg left. 3 bunkers and water.
Green 33 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 481 yd
Plays south-east. Dogleg right. 6 bunkers.
Green 28 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 177 yd
Plays west. 3 bunkers.
Green 27 yd deep, 23 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 487 yd
Plays north. Dogleg left. 4 bunkers and water.
Green 28 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 369 yd
Plays south-west.
Green 25 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 401 yd
Plays north. 4 bunkers.
Green 28 yd deep, 32 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 211 yd
Plays north. 3 bunkers.
Green 33 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 392 yd
Plays south. Dogleg right. 9 bunkers.
Green 33 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 408 yd
Plays north. Dogleg left. 8 bunkers.
Green 31 yd deep, 31 yd wide. Falls 5% 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.