Hole 1
Par 4 · 400 yd
Plays north-west. Dogleg right. 2 bunkers and water.
Golf course in Dulles, Virginia, USA
18 holes, par 70, about 6,403 yards (5,855 metres) along the hole lines. The par 3s are 3, 7, 14, 16 and 18. The par 5s are 9, 10 and 15. The longest hole is the 15th at 581 yd, the shortest the 18th at 166 yd. The map shows 63 bunkers. Water is in play on holes 1, 2, 4, 5, 6, 7, 9, 10, 12, 13, 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.
Par 4 · 400 yd
Plays north-west. Dogleg right. 2 bunkers and water.
Par 4 · 363 yd
Plays north-west. 4 bunkers and water.
Par 3 · 198 yd
Plays east. 4 bunkers.
Par 4 · 274 yd
Plays west. Dogleg right. 4 bunkers and water.
Par 4 · 445 yd
Plays east. Dogleg right. 2 bunkers and water.
Par 4 · 436 yd
Plays south-east. Dogleg right. 3 bunkers and water.
Par 3 · 236 yd
Plays north. 3 bunkers and water.
Par 4 · 382 yd
Plays south.
Par 5 · 446 yd
Plays south. 4 bunkers and water.
Par 5 · 558 yd
Plays north-east. Dogleg right. 7 bunkers and water.
Par 4 · 385 yd
Plays south-west. Dogleg left. 4 bunkers.
Par 4 · 302 yd
Plays north. 5 bunkers and water.
Par 4 · 455 yd
Plays north. 3 bunkers and water.
Par 3 · 186 yd
Plays north. 2 bunkers.
Par 5 · 581 yd
Plays south. 8 bunkers and water.
Par 3 · 180 yd
Plays south-east. 2 bunkers and water.
Par 4 · 408 yd
Plays south-west. 4 bunkers and water.
Par 3 · 166 yd
Plays east. 3 bunkers and water.
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.