Hole 1
Par 5 · 469 yd
Plays south-east. 2 bunkers.
Green 24 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Lynnfield, Massachusetts, USA
18 holes, par 70, about 5,435 yards (4,970 metres) along the hole lines. The par 3s are 6, 8, 9, 14, 17 and 18. The par 5s are 1, 3, 11 and 12. The longest hole is the 11th at 491 yd, the shortest the 14th at 119 yd. The map shows 37 bunkers. Water is in play on holes 9 and 18.
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 · 469 yd
Plays south-east. 2 bunkers.
Green 24 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 331 yd
Plays north. 3 bunkers.
Green 30 yd deep, 23 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 483 yd
Plays south. 3 bunkers.
Green 37 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 347 yd
Plays west. 7 bunkers.
Green 35 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 280 yd
Plays east. 3 bunkers.
Green 24 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 148 yd
Plays north-west. 3 bunkers.
Green 21 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 331 yd
Plays south-west. Dogleg left. 4 bunkers.
Green 24 yd deep, 34 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 183 yd
Plays north-west. 1 bunker.
Green 19 yd deep, 24 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 159 yd
Plays north-east. 1 bunker and water.
Green 17 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 252 yd
Plays south. Dogleg left. 2 bunkers.
Green 30 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 491 yd
Plays north-west. 1 bunker.
Green 26 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 435 yd
Plays south-east. Dogleg left. 4 bunkers.
Green 22 yd deep, 20 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 399 yd
Plays north-west. Dogleg right. 2 bunkers.
Green 22 yd deep, 20 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 119 yd
Plays south-east. 1 bunker.
Green 22 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 317 yd
Plays east. Dogleg right. 1 bunker.
Green 16 yd deep, 23 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 322 yd
Plays west. 2 bunkers.
Green 24 yd deep, 19 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 186 yd
Plays south-east. 1 bunker.
Green 17 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 183 yd
Plays east. 3 bunkers and water.
Green 19 yd deep, 28 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.