Hole 1
Par 4 · 468 yd
Plays north-east. Dogleg right. 3 bunkers.
Green 32 yd deep, 34 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Layhill, Maryland, USA
18 holes, par 72, about 6,981 yards (6,383 metres) along the hole lines. The par 3s are 3, 6, 13 and 16. The par 5s are 5, 8, 15 and 17. The longest hole is the 5th at 545 yd, the shortest the 3rd at 182 yd. The map shows 49 bunkers. It shows no water in play.
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 · 468 yd
Plays north-east. Dogleg right. 3 bunkers.
Green 32 yd deep, 34 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 405 yd
Plays south. Dogleg right. 4 bunkers.
Green 37 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 182 yd
Plays north. 3 bunkers.
Green 33 yd deep, 32 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 443 yd
Plays south. Dogleg left. 1 bunker.
Green 31 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 545 yd
Plays south. 3 bunkers.
Green 34 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 182 yd
Plays north. 2 bunkers.
Green 38 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 424 yd
Plays south. 2 bunkers.
Green 36 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 538 yd
Plays north. Dogleg right. 3 bunkers.
Green 45 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 326 yd
Plays north-west. 2 bunkers.
Green 43 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 392 yd
Plays south. Dogleg right. 2 bunkers.
Green 35 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 441 yd
Plays south. 3 bunkers.
Green 33 yd deep, 31 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 367 yd
Plays north. Dogleg right. 2 bunkers.
Green 36 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 194 yd
Plays north. 1 bunker.
Green 28 yd deep, 34 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 420 yd
Plays south. 1 bunker.
Green 32 yd deep, 28 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 529 yd
Plays north. 5 bunkers.
Green 42 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 205 yd
Plays east. 3 bunkers.
Green 34 yd deep, 30 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 526 yd
Plays south-east. Dogleg right. 2 bunkers.
Green 32 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 397 yd
Plays north. 4 bunkers.
Green 40 yd deep, 27 yd wide. Falls 3% 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.