Hole 1
Par 5 · 435 yd
Plays north-east. Dogleg left. 3 bunkers.
Green 37 yd deep, 25 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Castle Rock, Colorado, USA
18 holes, par 72, about 6,017 yards (5,502 metres) along the hole lines. The par 3s are 3, 6, 11, 14 and 17. The par 5s are 1, 7, 13, 16 and 18. The longest hole is the 7th at 576 yd, the shortest the 6th at 136 yd. The map shows 40 bunkers. Water is in play on holes 4, 5, 6 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 5 · 435 yd
Plays north-east. Dogleg left. 3 bunkers.
Green 37 yd deep, 25 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 367 yd
Plays north-east. Dogleg left. 3 bunkers.
Green 36 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 154 yd
Plays south. 1 bunker.
Green 47 yd deep, 33 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 374 yd
Plays north-east. Dogleg left. Water.
Green 37 yd deep, 34 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 336 yd
Plays south. Dogleg left. 1 bunker and water.
Green 37 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 136 yd
Plays south-west. 10 bunkers and water.
Green 36 yd deep, 38 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 576 yd
Plays west. Dogleg left.
Green 27 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 290 yd
Plays south-west. Dogleg left. 2 bunkers.
Green 34 yd deep, 36 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 297 yd
Plays north. Dogleg left. 1 bunker.
Green 45 yd deep, 30 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 351 yd
Plays north-west. 2 bunkers.
Green 37 yd deep, 42 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 170 yd
Plays west. 1 bunker.
Green 45 yd deep, 20 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 331 yd
Plays south-west. 4 bunkers.
Green 34 yd deep, 32 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 491 yd
Plays south.
Green 24 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 176 yd
Plays north. 1 bunker.
Green 47 yd deep, 40 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 462 yd
Plays north-east.
Green 35 yd deep, 27 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 503 yd
Plays south-west.
Green 33 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 136 yd
Plays north-east. 9 bunkers.
Green 33 yd deep, 36 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 432 yd
Plays north. 3 bunkers and water.
Green 24 yd deep, 34 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.