Hole 1
Par 5 · 501 yd
Plays south-east. Dogleg left. 2 bunkers and water.
Green 27 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Burlington, Iowa, USA
18 holes, par 71, about 6,179 yards (5,650 metres) along the hole lines. The par 3s are 3, 8, 14 and 15. The par 5s are 1, 9 and 16. The longest hole is the 9th at 502 yd, the shortest the 15th at 175 yd. The map shows 14 bunkers. Water is in play on holes 1, 8, 9, 11, 12 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 · 501 yd
Plays south-east. Dogleg left. 2 bunkers and water.
Green 27 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 399 yd
Plays south-east. Dogleg left. 1 bunker.
Green 25 yd deep, 24 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 196 yd
Plays south. 1 bunker.
Green 23 yd deep, 20 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 335 yd
Plays south-east. 2 bunkers.
Green 27 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 413 yd
Plays north-west. 3 bunkers.
Green 26 yd deep, 17 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 302 yd
Plays north-west. 2 bunkers.
Green 31 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 400 yd
Plays north-west. 2 bunkers.
Green 27 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 176 yd
Plays west. Water.
Green 22 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 502 yd
Plays north. 1 bunker and water.
Green 24 yd deep, 20 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 285 yd
Plays north. 1 bunker.
Green 25 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 341 yd
Plays east. Water.
Green 28 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 379 yd
Plays south-east. Dogleg left. Water.
Green 31 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 343 yd
Plays west.
Green 22 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 192 yd
Plays west.
Green 24 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 175 yd
Plays south-east.
Green 26 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 483 yd
Plays south-east. Dogleg left. 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 · 349 yd
Plays west. Dogleg right.
Green 21 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 404 yd
Plays north. Water.
Green 25 yd deep, 23 yd wide. Falls 4% 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.