Hole 1
Par 4 · 366 yd
Plays south-west. Dogleg right. 2 bunkers and water.
Green 27 yd deep, 23 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Windsor Heights, Iowa, USA
18 holes, par 72, about 6,207 yards (5,676 metres) along the hole lines. The par 3s are 2, 8, 10 and 13. The par 5s are 3, 7, 12 and 15. The longest hole is the 12th at 571 yd, the shortest the 13th at 116 yd. The map shows 23 bunkers. Water is in play on holes 1 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 4 · 366 yd
Plays south-west. Dogleg right. 2 bunkers and water.
Green 27 yd deep, 23 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 141 yd
Plays north. 1 bunker.
Green 26 yd deep, 30 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 556 yd
Plays south-west.
Green 25 yd deep, 24 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 358 yd
Plays north-east. Dogleg left. 3 bunkers.
Green 26 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 317 yd
Plays south-east. Dogleg right. 2 bunkers.
Green 28 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 304 yd
Plays west. 2 bunkers.
Green 26 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 479 yd
Plays north. 3 bunkers.
Green 25 yd deep, 24 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 176 yd
Plays north-east.
Green 30 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 378 yd
Plays east.
Green 32 yd deep, 24 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 198 yd
Plays south.
Green 34 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 359 yd
Plays south.
Green 24 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 571 yd
Plays north. Dogleg right.
Green 26 yd deep, 25 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 116 yd
Plays north-east.
Green 27 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 301 yd
Plays south. 1 bunker.
Green 28 yd deep, 30 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 453 yd
Plays south. 2 bunkers.
Green 30 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 441 yd
Plays west.
Green 32 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 342 yd
Plays north-east. Dogleg left. 4 bunkers.
Green 26 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 352 yd
Plays north. 6 bunkers and water.
Green 25 yd deep, 32 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.