Hole 1
Par 4 · 432 yd
Plays south. 7 bunkers.
Green 25 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Canton, Massachusetts, USA
18 holes, par 72, about 6,631 yards (6,063 metres) along the hole lines. The par 3s are 4, 7, 13 and 16. The par 5s are 8, 9, 12 and 18. The longest hole is the 12th at 513 yd, the shortest the 7th at 127 yd. The map shows 109 bunkers. Water is in play on holes 8 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 4 · 432 yd
Plays south. 7 bunkers.
Green 25 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 431 yd
Plays north. 6 bunkers.
Green 31 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 429 yd
Plays south. Dogleg left. 4 bunkers.
Green 35 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 201 yd
Plays south-east. 4 bunkers.
Green 31 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 382 yd
Plays north-west. 3 bunkers.
Green 34 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 299 yd
Plays south-east. 4 bunkers.
Green 33 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 127 yd
Plays north-west. 6 bunkers.
Green 27 yd deep, 30 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 512 yd
Plays south-west. 7 bunkers and water.
Green 25 yd deep, 22 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 468 yd
Plays south. Dogleg left. 8 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 · 416 yd
Plays north. 5 bunkers.
Green 25 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 418 yd
Plays north. 4 bunkers.
Green 27 yd deep, 26 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 513 yd
Plays south-west. Dogleg right. 8 bunkers.
Green 25 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 227 yd
Plays north. 5 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 · 398 yd
Plays north-east. Dogleg right. 7 bunkers.
Green 23 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 361 yd
Plays south-east. Dogleg right. 5 bunkers.
Green 24 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 184 yd
Plays south-east. 9 bunkers.
Green 21 yd deep, 19 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 366 yd
Plays north. Dogleg left. 6 bunkers and water.
Green 28 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 468 yd
Plays north. 6 bunkers.
Green 26 yd deep, 21 yd wide. Falls 3% 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.