Hole 1
Par 4 · 437 yd
Plays west. 2 bunkers and water.
Green 30 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Boise, Idaho, USA
18 holes, par 71, about 6,600 yards (6,035 metres) along the hole lines. The par 3s are 2, 4, 8, 12 and 16. The par 5s are 5, 9, 10 and 13. The longest hole is the 13th at 636 yd, the shortest the 8th at 138 yd. The map shows 24 bunkers. Water is in play on holes 1, 2, 3, 4, 5, 7, 8, 9, 14, 15, 16 and 17.
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 · 437 yd
Plays west. 2 bunkers and water.
Green 30 yd deep, 21 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 164 yd
Plays east. 1 bunker and water.
Green 28 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 358 yd
Plays south-west. 2 bunkers and water.
Green 30 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 176 yd
Plays south-west. 1 bunker and water.
Green 22 yd deep, 24 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 540 yd
Plays north. 1 bunker and water.
Green 31 yd deep, 30 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 406 yd
Plays south.
Green 31 yd deep, 25 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 397 yd
Plays north. 2 bunkers and water.
Green 31 yd deep, 20 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 138 yd
Plays south-east. 2 bunkers and water.
Green 27 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 518 yd
Plays south-east. Dogleg right. 5 bunkers and water.
Green 40 yd deep, 24 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 527 yd
Plays west. Dogleg right. 1 bunker.
Green 27 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 373 yd
Plays east. 4 bunkers.
Green 27 yd deep, 23 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 164 yd
Plays east. 1 bunker.
Green 33 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 636 yd
Plays west. 2 bunkers.
Green 33 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 405 yd
Plays east. 1 bunker and water.
Green 31 yd deep, 15 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 399 yd
Plays west. Dogleg left. 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 · 167 yd
Plays west. 1 bunker and water.
Green 26 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 375 yd
Plays north-east. 2 bunkers and water.
Green 30 yd deep, 23 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 421 yd
Plays east. 2 bunkers.
Green 26 yd deep, 23 yd wide. Falls 1% 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.