Hole 1
Par 4 · 295 yd
Plays north. Dogleg left. 2 bunkers.
Green 31 yd deep, 19 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Monte Rio, California, USA
9 holes, par 35, about 2,840 yards (2,597 metres) along the hole lines. The par 3s are 3 and 8. The only par 5 is the 9th. The longest hole is the 9th at 533 yd, the shortest the 8th at 113 yd. The map shows 9 bunkers. It shows no water in play.
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 · 295 yd
Plays north. Dogleg left. 2 bunkers.
Green 31 yd deep, 19 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 373 yd
Plays south-east.
Green 33 yd deep, 14 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 144 yd
Plays north-west.
Green 31 yd deep, 21 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 264 yd
Plays south-east.
Green 30 yd deep, 13 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 457 yd
Plays north-west. 5 bunkers.
Green 30 yd deep, 16 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 290 yd
Plays south. Dogleg right. 4 bunkers.
Green 31 yd deep, 16 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 371 yd
Plays east. Dogleg right. 2 bunkers.
Green 32 yd deep, 17 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 113 yd
Plays east. 3 bunkers.
Green 27 yd deep, 17 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 533 yd
Plays west. 1 bunker.
Green 21 yd deep, 17 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.