Hole 1
Par 5 · 535 yd
Plays north. 6 bunkers.
Green 32 yd deep, 17 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Baltimore, Maryland, USA
18 holes, par 71, about 6,299 yards (5,760 metres) along the hole lines. The par 3s are 6, 11 and 17. The par 5s are 1 and 10. The longest hole is the 1st at 535 yd, the shortest the 6th at 118 yd. The map shows 59 bunkers. Water is in play on the 6th.
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 · 535 yd
Plays north. 6 bunkers.
Green 32 yd deep, 17 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 331 yd
Plays north-west. Dogleg right. 3 bunkers.
Green 28 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 309 yd
Plays east. Dogleg right. 7 bunkers.
Green 32 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 362 yd
Plays north-west. Dogleg left. 3 bunkers.
Green 35 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 401 yd
Plays south. Dogleg right. 4 bunkers.
Green 34 yd deep, 35 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 118 yd
Plays south-west. 2 bunkers and water.
Green 38 yd deep, 35 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 341 yd
Plays north-west. Dogleg right. 3 bunkers.
Green 28 yd deep, 22 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 366 yd
Plays south-east. Dogleg left. 6 bunkers.
Green 35 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 441 yd
Plays south. 6 bunkers.
Green 33 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 522 yd
Plays north. 6 bunkers.
Green 26 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 191 yd
Plays south. 7 bunkers.
Green 28 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 369 yd
Plays south. Dogleg left. 2 bunkers.
Green 37 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 372 yd
Plays south. Dogleg right. 6 bunkers.
Green 32 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 394 yd
Plays south. Dogleg right. 2 bunkers.
Green 33 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 410 yd
Plays north. 2 bunkers.
Green 37 yd deep, 30 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 288 yd
Plays north-west. Dogleg right. 3 bunkers.
Green 30 yd deep, 33 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 200 yd
Plays east. 3 bunkers.
Green 39 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 348 yd
Plays north-east. Dogleg left. 2 bunkers.
Green 32 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. 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.