Hole 1
Par 5 · 517 yd
Plays north-east. Dogleg left. 5 bunkers.
Green 23 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Mount Airy, Maryland, USA
18 holes, par 72, about 6,487 yards (5,932 metres) along the hole lines. The par 3s are 5, 7, 12 and 14. The par 5s are 1, 3, 10 and 17. The longest hole is the 10th at 575 yd, the shortest the 5th at 121 yd. The map shows 65 bunkers. Water is in play on holes 3, 4, 8, 11, 12, 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 · 517 yd
Plays north-east. Dogleg left. 5 bunkers.
Green 23 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 409 yd
Plays east. 2 bunkers.
Green 24 yd deep, 28 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 538 yd
Plays south. 2 bunkers and water.
Green 22 yd deep, 25 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 389 yd
Plays north-west. Dogleg left. 2 bunkers and water.
Green 34 yd deep, 22 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 121 yd
Plays south-east. 3 bunkers.
Green 27 yd deep, 26 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 377 yd
Plays west. 3 bunkers.
Green 31 yd deep, 20 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 159 yd
Plays south. 2 bunkers.
Green 27 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 388 yd
Plays west. 6 bunkers and water.
Green 27 yd deep, 35 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 318 yd
Plays north. Dogleg left. 5 bunkers.
Green 27 yd deep, 32 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 575 yd
Plays south-west. Dogleg right. 7 bunkers.
Green 32 yd deep, 32 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 343 yd
Plays north. Dogleg right. 3 bunkers and water.
Green 32 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 186 yd
Plays south-east. 3 bunkers and water.
Green 36 yd deep, 33 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 354 yd
Plays north-east. 4 bunkers.
Green 31 yd deep, 30 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 219 yd
Plays north-east. 2 bunkers.
Green 30 yd deep, 34 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 406 yd
Plays north-east. Dogleg right. 3 bunkers.
Green 30 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 318 yd
Plays south. 5 bunkers.
Green 28 yd deep, 36 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 498 yd
Plays east. Dogleg right. 4 bunkers and water.
Green 31 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 371 yd
Plays south-west. 4 bunkers and water.
Green 35 yd deep, 20 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. 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.