Hole 1
Par 3 · 151 yd
Plays east. 3 bunkers.
Green 30 yd deep, 33 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Walpole, Massachusetts, USA
9 holes, par 29, about 1,555 yards (1,422 metres) along the hole lines. The par 3s are 1, 2, 3, 4, 5, 8 and 9. The longest hole is the 7th at 281 yd, the shortest the 5th at 91 yd. The map shows 14 bunkers. It shows no water in play.
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 · 151 yd
Plays east. 3 bunkers.
Green 30 yd deep, 33 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 143 yd
Plays south-west. 4 bunkers.
Green 35 yd deep, 30 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 148 yd
Plays north-west. 1 bunker.
Green 32 yd deep, 26 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 164 yd
Plays west.
Green 26 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 91 yd
Plays east. 1 bunker.
Green 16 yd deep, 16 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 250 yd
Plays north. 2 bunkers.
Green 22 yd deep, 21 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 281 yd
Plays south. Dogleg left. 1 bunker.
Green 30 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 168 yd
Plays north. 1 bunker.
Green 24 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 157 yd
Plays north-east. 3 bunkers.
Green 32 yd deep, 25 yd wide. Falls 2% 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. Pars are 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.