Hole 1
Par 4 · 317 yd
Plays east. Dogleg left. 3 bunkers.
Green 23 yd deep, 20 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Boise, Idaho, USA
18 holes, par 70, about 5,763 yards (5,270 metres) along the hole lines. The par 3s are 2, 4, 15 and 17. The par 5s are 7 and 16. The longest hole is the 16th at 483 yd, the shortest the 17th at 115 yd. The map shows 17 bunkers. Water is in play on holes 4, 5, 10, 11 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 · 317 yd
Plays east. Dogleg left. 3 bunkers.
Green 23 yd deep, 20 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 178 yd
Plays south. 1 bunker.
Green 34 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 320 yd
Plays north. Dogleg left.
Green 20 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 125 yd
Plays south-west. Water.
Green 33 yd deep, 19 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 375 yd
Plays north. Water.
Green 54 yd deep, 43 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 369 yd
Plays north-east.
Green 30 yd deep, 26 yd wide. Falls 7% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 428 yd
Plays south-west. 1 bunker.
Green 32 yd deep, 25 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 371 yd
Plays north-east. 1 bunker.
Green 42 yd deep, 33 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 357 yd
Plays south-west. 2 bunkers.
Green 30 yd deep, 21 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 388 yd
Plays south. Dogleg left. 1 bunker and water.
Green 27 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 401 yd
Plays north-west. Dogleg left. 4 bunkers and water.
Green 28 yd deep, 17 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 339 yd
Plays south-east. Dogleg right. 2 bunkers.
Green 15 yd deep, 31 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 349 yd
Plays north-west. 1 bunker.
Green 25 yd deep, 26 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 264 yd
Plays north-west.
Green 20 yd deep, 22 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 174 yd
Plays south-east. 3 bunkers.
Green 21 yd deep, 26 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 483 yd
Plays south-east. 2 bunkers.
Green 37 yd deep, 31 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 115 yd
Plays north-west.
Green 28 yd deep, 22 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 411 yd
Plays north. Dogleg right. Water.
Green 34 yd deep, 35 yd wide. Falls 5% 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. Pars are 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.