Hole 1
Par 5 · 524 yd
Plays south-west. 2 bunkers and water.
Green 23 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Boonville, New York, USA
18 holes, par 70, about 5,031 yards (4,600 metres) along the hole lines. The par 3s are 2, 6, 9, 12, 15 and 16. The par 5s are 1, 3, 4 and 10. The longest hole is the 3rd at 530 yd, the shortest the 12th at 91 yd. The map shows 26 bunkers. Water is in play on holes 1, 5, 6, 9, 10, 11, 15, 17 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 · 524 yd
Plays south-west. 2 bunkers and water.
Green 23 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 118 yd
Plays north-west. 3 bunkers.
Green 25 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 530 yd
Plays east. Dogleg left.
Green 24 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 446 yd
Plays west. Dogleg right. 3 bunkers.
Green 24 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 248 yd
Plays north-east. 2 bunkers and water.
Green 25 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 180 yd
Plays north-east. Water.
Green 26 yd deep, 31 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 317 yd
Plays south-west. 1 bunker.
Green 23 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 314 yd
Plays north-east. 4 bunkers.
Green 28 yd deep, 30 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 152 yd
Plays east. 3 bunkers and water.
Green 32 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 424 yd
Plays north. Dogleg left. 3 bunkers and water.
Green 37 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 281 yd
Plays north-west. 1 bunker and water.
Green 28 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 91 yd
Plays west.
Green 27 yd deep, 21 yd wide. Falls 7% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 295 yd
Plays north. Dogleg right. 3 bunkers.
Green 27 yd deep, 27 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 240 yd
Plays south-west. Dogleg right. 1 bunker.
Green 36 yd deep, 27 yd wide. Falls 7% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 124 yd
Plays south-east. Water.
Green 33 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 144 yd
Plays east. 1 bunker.
Green 24 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 261 yd
Plays south-east. 1 bunker and water.
Green 34 yd deep, 23 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 342 yd
Plays south. Dogleg right. 1 bunker and water.
Green 28 yd deep, 23 yd wide. Falls 6% 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.