Hole 1
Par 4 · 360 yd
Plays north-east. Dogleg right. 7 bunkers and water.
Green 37 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Green Valley, Maryland, USA
18 holes, par 72, about 6,842 yards (6,256 metres) along the hole lines. The par 3s are 3, 7, 11 and 15. The par 5s are 4, 9, 16 and 18. The longest hole is the 4th at 548 yd, the shortest the 7th at 130 yd. The map shows 67 bunkers. Water is in play on holes 1, 2, 14, 15, 16, 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 4 · 360 yd
Plays north-east. Dogleg right. 7 bunkers and water.
Green 37 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 379 yd
Plays east. 4 bunkers and water.
Green 37 yd deep, 32 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 190 yd
Plays south-east. 3 bunkers.
Green 35 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 548 yd
Plays south. 4 bunkers.
Green 42 yd deep, 27 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 409 yd
Plays west. Dogleg left. 3 bunkers.
Green 28 yd deep, 32 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 343 yd
Plays east. Dogleg right. 5 bunkers.
Green 26 yd deep, 39 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 130 yd
Plays north-east. 3 bunkers.
Green 27 yd deep, 38 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 387 yd
Plays north. Dogleg left. 3 bunkers.
Green 28 yd deep, 36 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 538 yd
Plays south-west. Dogleg right. 6 bunkers.
Green 30 yd deep, 34 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 378 yd
Plays south. Dogleg left. 4 bunkers.
Green 39 yd deep, 31 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 194 yd
Plays west. 2 bunkers.
Green 37 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 440 yd
Plays north-east. Dogleg left. 2 bunkers.
Green 37 yd deep, 31 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 413 yd
Plays north. 3 bunkers.
Green 39 yd deep, 28 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 404 yd
Plays east. 3 bunkers and water.
Green 34 yd deep, 34 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 217 yd
Plays east. 3 bunkers and water.
Green 33 yd deep, 38 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 542 yd
Plays west. 8 bunkers and water.
Green 30 yd deep, 38 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 425 yd
Plays east. Dogleg right. 4 bunkers and water.
Green 46 yd deep, 24 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 542 yd
Plays west. Dogleg left. 5 bunkers and water.
Green 25 yd deep, 43 yd wide. Nearly flat 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.