Hole 1
Par 3 · 215 yd
Plays west. Water.
Green 20 yd deep, 20 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Londonderry, New Hampshire, USA
18 holes, par 62, about 3,876 yards (3,544 metres) along the hole lines. The par 3s are 1, 2, 5, 6, 7, 8, 9, 10, 11 and 18. The longest hole is the 17th at 355 yd, the shortest the 11th at 112 yd. The map shows 11 bunkers. Water is in play on holes 1, 3, 4, 7, 9, 13, 16 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 3 · 215 yd
Plays west. Water.
Green 20 yd deep, 20 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 159 yd
Plays south-west. 1 bunker.
Green 23 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 250 yd
Plays south-east. 1 bunker and water.
Green 25 yd deep, 22 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 219 yd
Plays north-west. 2 bunkers and water.
Green 27 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 129 yd
Plays south-east. 1 bunker.
Green 23 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 168 yd
Plays north.
Green 20 yd deep, 21 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 176 yd
Plays south. Water.
Green 30 yd deep, 20 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 124 yd
Plays east.
Green 20 yd deep, 23 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 174 yd
Plays north-west. Water.
Green 19 yd deep, 16 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 164 yd
Plays north. 2 bunkers.
Green 25 yd deep, 14 yd wide. Falls 7% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 112 yd
Plays south-west. 1 bunker.
Green 15 yd deep, 15 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 276 yd
Plays west. Dogleg right. 1 bunker.
Green 30 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 304 yd
Plays west. Dogleg right. 2 bunkers and water.
Green 24 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 319 yd
Plays south-east. 1 bunker.
Green 26 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 236 yd
Plays south-east. 1 bunker.
Green 31 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 354 yd
Plays north-west. 1 bunker and water.
Green 24 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 355 yd
Plays north-east. Water.
Green 30 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 143 yd
Plays south. 1 bunker.
Green 20 yd deep, 23 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.