Hole 1
Par 5 · 529 yd
Plays south-east. Dogleg left. 5 bunkers.
Golf course in Boulder Hill, Illinois, USA
18 holes, par 72, about 6,559 yards (5,998 metres) along the hole lines. The par 3s are 3, 6, 11 and 15. The par 5s are 1, 9, 14 and 16. The longest hole is the 1st at 529 yd, the shortest the 3rd at 148 yd. The map shows 41 bunkers. Water is in play on holes 2, 3, 4, 8, 9, 14 and 15.
Every hole, numbered, as the app draws it.
Each hole turned so it plays up the page, from the tee at the bottom.
Par 5 · 529 yd
Plays south-east. Dogleg left. 5 bunkers.
Par 4 · 359 yd
Plays north-west. 3 bunkers and water.
Par 3 · 148 yd
Plays north-east. 1 bunker and water.
Par 4 · 394 yd
Plays south-east. Dogleg left. Water.
Par 4 · 372 yd
Plays south-east. Dogleg left. 4 bunkers.
Par 3 · 171 yd
Plays west. 4 bunkers.
Par 4 · 379 yd
Plays west. 4 bunkers.
Par 4 · 296 yd
Plays south-east. Dogleg right. 2 bunkers and water.
Par 5 · 518 yd
Plays north-west. Dogleg right. 1 bunker and water.
Par 4 · 361 yd
Plays south-west. 2 bunkers.
Par 3 · 200 yd
Plays north-east. 6 bunkers.
Par 4 · 365 yd
Plays south-east. 4 bunkers.
Par 4 · 425 yd
Plays west. Dogleg left. 2 bunkers.
Par 5 · 469 yd
Plays west. 1 bunker and water.
Par 3 · 189 yd
Plays north-east. Water.
Par 5 · 526 yd
Plays east. Dogleg left. 2 bunkers.
Par 4 · 428 yd
Plays west. Dogleg right. 4 bunkers.
Par 4 · 431 yd
Plays east. 4 bunkers.
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.