Hole 1
Par 5 · 507 yd
Plays north. 2 bunkers and water.
Green 31 yd deep, 44 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Onaway, Michigan, USA
18 holes, par 72, about 7,059 yards (6,455 metres) along the hole lines. The par 3s are 5, 8, 12 and 14. The par 5s are 1, 9, 15 and 18. The longest hole is the 18th at 594 yd, the shortest the 12th at 171 yd. The map shows 67 bunkers. Water is in play on holes 1, 2, 15 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 5 · 507 yd
Plays north. 2 bunkers and water.
Green 31 yd deep, 44 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 424 yd
Plays south-east. 4 bunkers and water.
Green 36 yd deep, 33 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 387 yd
Plays north-west. 3 bunkers.
Green 34 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 463 yd
Plays west. 7 bunkers.
Green 36 yd deep, 30 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 232 yd
Plays north. 2 bunkers.
Green 28 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 383 yd
Plays north. 3 bunkers.
Green 31 yd deep, 27 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 427 yd
Plays south-east. Dogleg right. 7 bunkers.
Green 34 yd deep, 24 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 180 yd
Plays south. 1 bunker.
Green 31 yd deep, 35 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 563 yd
Plays south-east. 8 bunkers.
Green 31 yd deep, 31 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 435 yd
Plays north. 3 bunkers.
Green 32 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 358 yd
Plays north. Dogleg right. 5 bunkers.
Green 27 yd deep, 20 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 171 yd
Plays south. 2 bunkers.
Green 35 yd deep, 22 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 382 yd
Plays north. Dogleg left. 4 bunkers.
Green 24 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 201 yd
Plays west. 3 bunkers.
Green 34 yd deep, 26 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 521 yd
Plays south-west. Dogleg left. 3 bunkers and water.
Green 38 yd deep, 32 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 439 yd
Plays north-east. Dogleg right. 1 bunker.
Green 30 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 397 yd
Plays south-west. 4 bunkers and water.
Green 32 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 594 yd
Plays south. 2 bunkers.
Green 34 yd deep, 26 yd wide. Falls 2% 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.