Hole 1
Par 4 · 386 yd
Plays north-east. 2 bunkers.
Green 27 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Tahoe Donner, California, USA
9 holes, par 35, about 3,004 yards (2,747 metres) along the hole lines. The par 3s are 3 and 6. The only par 5 is the 9th. The longest hole is the 9th at 503 yd, the shortest the 3rd at 141 yd. The map shows 10 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 · 386 yd
Plays north-east. 2 bunkers.
Green 27 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 303 yd
Plays east. 1 bunker.
Green 26 yd deep, 25 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 141 yd
Plays south. 1 bunker.
Green 21 yd deep, 26 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 357 yd
Plays west.
Green 20 yd deep, 17 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 354 yd
Plays east. Dogleg left. 1 bunker.
Green 25 yd deep, 23 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 168 yd
Plays south. 2 bunkers.
Green 26 yd deep, 24 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 439 yd
Plays north-west. 3 bunkers.
Green 24 yd deep, 20 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 354 yd
Plays east. 2 bunkers.
Green 28 yd deep, 26 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 503 yd
Plays west. Dogleg right. 4 bunkers.
Green 27 yd deep, 24 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.