Hole 1
Par 4 · 447 yd
Plays north-east. Dogleg right. 2 bunkers and water.
Green 23 yd deep, 31 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in College Park Woods, Maryland, USA
18 holes, par 71, about 6,491 yards (5,935 metres) along the hole lines. The par 3s are 4, 8, 11 and 14. The par 5s are 9, 13 and 16. The longest hole is the 9th at 530 yd, the shortest the 8th at 120 yd. The map shows 65 bunkers. Water is in play on holes 1, 2, 3, 8, 9, 10, 11, 12 and 14.
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 · 447 yd
Plays north-east. Dogleg right. 2 bunkers and water.
Green 23 yd deep, 31 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 419 yd
Plays north-west. Dogleg left. 2 bunkers and water.
Green 33 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 326 yd
Plays north-east. 6 bunkers and water.
Green 27 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 189 yd
Plays south-east. 3 bunkers.
Green 32 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 417 yd
Plays north. 5 bunkers.
Green 32 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 442 yd
Plays south. Dogleg right. 6 bunkers.
Green 37 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 358 yd
Plays south. 2 bunkers.
Green 31 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 120 yd
Plays south. 4 bunkers and water.
Green 25 yd deep, 27 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 530 yd
Plays south-west. 8 bunkers and water.
Green 31 yd deep, 34 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 401 yd
Plays north. 3 bunkers and water.
Green 35 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 167 yd
Plays north-west. 2 bunkers and water.
Green 36 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 364 yd
Plays south-east. Dogleg right. 2 bunkers and water.
Green 34 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 495 yd
Plays north-west. 6 bunkers.
Green 39 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 209 yd
Plays east. 2 bunkers and water.
Green 42 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 355 yd
Plays north. Dogleg left. 4 bunkers.
Green 33 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 488 yd
Plays south-west. Dogleg right. 5 bunkers.
Green 33 yd deep, 34 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 320 yd
Plays south-east. Dogleg left. 2 bunkers.
Green 34 yd deep, 23 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 443 yd
Plays south-east. 4 bunkers.
Green 40 yd deep, 31 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.