Hole 1
Par 4 · 386 yd
Plays north. 10 bunkers.
Green 37 yd deep, 27 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Holyoke, Colorado, USA
18 holes, par 71, about 7,006 yards (6,406 metres) along the hole lines. The par 3s are 3, 5, 11 and 15. The par 5s are 4, 8 and 16. The longest hole is the 4th at 577 yd, the shortest the 5th at 145 yd. The map shows 216 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. 10 bunkers.
Green 37 yd deep, 27 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 493 yd
Plays north. 13 bunkers.
Green 45 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 150 yd
Plays west. 8 bunkers.
Green 31 yd deep, 24 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 577 yd
Plays south-west. 9 bunkers.
Green 36 yd deep, 34 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 145 yd
Plays north-west. 6 bunkers.
Green 38 yd deep, 28 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 443 yd
Plays south-east. Dogleg left. 9 bunkers.
Green 40 yd deep, 32 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 343 yd
Plays north. 11 bunkers.
Green 49 yd deep, 17 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 504 yd
Plays south-east. 12 bunkers.
Green 36 yd deep, 38 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 369 yd
Plays east. 10 bunkers.
Green 33 yd deep, 28 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 512 yd
Plays south. 18 bunkers.
Green 38 yd deep, 22 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 207 yd
Plays north-west. 9 bunkers.
Green 42 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 375 yd
Plays north-west. Dogleg left. 10 bunkers.
Green 39 yd deep, 35 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 431 yd
Plays south-west. 10 bunkers.
Green 39 yd deep, 36 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 364 yd
Plays south-east. Dogleg left. 10 bunkers.
Green 31 yd deep, 26 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 231 yd
Plays north-east. 4 bunkers.
Green 43 yd deep, 33 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 547 yd
Plays south. Dogleg left. 12 bunkers.
Green 33 yd deep, 28 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 481 yd
Plays north. Dogleg right. 8 bunkers.
Green 39 yd deep, 30 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 447 yd
Plays north. Dogleg left. 10 bunkers.
Green 37 yd deep, 36 yd wide. Falls 6% 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.