Hole 1
Par 5 · 522 yd
Plays north-west. 3 bunkers.
Green 44 yd deep, 26 yd wide. Falls 2% 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 7,262 yards (6,640 metres) along the hole lines. The par 3s are 2, 12, 14 and 17. The par 5s are 1, 5, 11 and 16. The longest hole is the 5th at 641 yd, the shortest the 17th at 133 yd. The map shows 56 bunkers. Water is in play on holes 6, 14 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 · 522 yd
Plays north-west. 3 bunkers.
Green 44 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 200 yd
Plays north-west. 2 bunkers.
Green 56 yd deep, 36 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 498 yd
Plays north-east. Dogleg left. 2 bunkers.
Green 40 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 463 yd
Plays west. 2 bunkers.
Green 51 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 641 yd
Plays south-west.
Green 49 yd deep, 39 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 422 yd
Plays south. Dogleg right. 2 bunkers and water.
Green 42 yd deep, 33 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 386 yd
Plays south-east. 4 bunkers.
Green 30 yd deep, 35 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 459 yd
Plays south. 4 bunkers.
Green 42 yd deep, 34 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 382 yd
Plays east. 2 bunkers.
Green 35 yd deep, 28 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 430 yd
Plays south-west. 1 bunker.
Green 32 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 557 yd
Plays south-west. 5 bunkers.
Green 46 yd deep, 23 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 162 yd
Plays south-west. 2 bunkers.
Green 36 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 427 yd
Plays south. Dogleg left. 6 bunkers.
Green 34 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 199 yd
Plays south. 3 bunkers and water.
Green 54 yd deep, 39 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 475 yd
Plays north. Dogleg right. 2 bunkers.
Green 67 yd deep, 30 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 544 yd
Plays north-east. 6 bunkers.
Green 58 yd deep, 31 yd wide. Falls 7% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 133 yd
Plays north.
Green 33 yd deep, 42 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 365 yd
Plays north-east. Dogleg left. 3 bunkers and water.
Green 43 yd deep, 34 yd wide. Falls 7% 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.