Hole 1
Par 4 · 266 yd
Plays north. 1 bunker and water.
Green 24 yd deep, 24 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Cedar Rapids, Iowa, USA
18 holes, par 70, about 5,422 yards (4,958 metres) along the hole lines. The par 3s are 7, 8, 10, 12 and 17. The par 5s are 4, 13 and 16. The longest hole is the 13th at 484 yd, the shortest the 7th at 124 yd. The map shows 15 bunkers. Water is in play on holes 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 16, 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 4 · 266 yd
Plays north. 1 bunker and water.
Green 24 yd deep, 24 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 375 yd
Plays east.
Green 31 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 242 yd
Plays south-east. Dogleg right. Water.
Green 28 yd deep, 30 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 420 yd
Plays east. 4 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 · 277 yd
Plays south-west. Dogleg right. 2 bunkers and water.
Green 22 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 267 yd
Plays south-west. Dogleg right. Water.
Green 22 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 124 yd
Plays west. 2 bunkers and water.
Green 23 yd deep, 28 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 164 yd
Plays north-east. Water.
Green 24 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 408 yd
Plays south-west. Dogleg right. Water.
Green 21 yd deep, 19 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 154 yd
Plays north-west. Water.
Green 17 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 352 yd
Plays north. Dogleg left. 1 bunker and water.
Green 23 yd deep, 34 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 142 yd
Plays north.
Green 21 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 484 yd
Plays east. 2 bunkers.
Green 23 yd deep, 27 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 400 yd
Plays west.
Green 26 yd deep, 19 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 339 yd
Plays south. Dogleg right. 2 bunkers.
Green 22 yd deep, 24 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 454 yd
Plays north-east. Dogleg right. 2 bunkers and water.
Green 23 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 205 yd
Plays west. Water.
Green 25 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 351 yd
Plays south. Water.
Green 26 yd deep, 20 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.