Hole 1
Par 4 · 383 yd
Plays north. Dogleg left. 6 bunkers and water.
Green 32 yd deep, 22 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Erie, Colorado, USA
18 holes, par 72, about 7,108 yards (6,500 metres) along the hole lines. The par 3s are 5, 9, 14 and 16. The par 5s are 2, 7, 12 and 15. The longest hole is the 15th at 651 yd, the shortest the 9th at 170 yd. The map shows 70 bunkers. Water is in play on holes 1, 2, 8, 9, 16, 17 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 4 · 383 yd
Plays north. Dogleg left. 6 bunkers and water.
Green 32 yd deep, 22 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 629 yd
Plays north-west. Dogleg left. 5 bunkers and water.
Green 30 yd deep, 27 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 456 yd
Plays west. Dogleg right. 2 bunkers.
Green 31 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 377 yd
Plays south. 2 bunkers.
Green 32 yd deep, 23 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 198 yd
Plays south. 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 · 469 yd
Plays south-east. Dogleg right. 2 bunkers.
Green 31 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 542 yd
Plays south-east. 8 bunkers.
Green 25 yd deep, 31 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 398 yd
Plays east. Dogleg left. 1 bunker and water.
Green 35 yd deep, 30 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 170 yd
Plays north-west. 2 bunkers and water.
Green 26 yd deep, 19 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 378 yd
Plays east. Dogleg left. 5 bunkers.
Green 32 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 447 yd
Plays south-east. 4 bunkers.
Green 31 yd deep, 33 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 534 yd
Plays east. Dogleg left. 6 bunkers.
Green 26 yd deep, 31 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 361 yd
Plays north. 5 bunkers.
Green 28 yd deep, 35 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 186 yd
Plays north-west. 1 bunker.
Green 39 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 651 yd
Plays north-west.
Green 35 yd deep, 23 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 194 yd
Plays south-west. Water.
Green 37 yd deep, 32 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 318 yd
Plays south-west. Dogleg right. 6 bunkers and water.
Green 31 yd deep, 35 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 418 yd
Plays south. Dogleg right. 7 bunkers and water.
Green 38 yd deep, 30 yd wide. Falls 4% 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.