Hole 1
Par 4 · 322 yd
Plays west. 1 bunker.
Green 30 yd deep, 27 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Denison, Iowa, USA
18 holes, par 71, about 6,182 yards (5,653 metres) along the hole lines. The par 3s are 4, 6, 12, 13 and 16. The par 5s are 5, 7, 14 and 15. The longest hole is the 15th at 552 yd, the shortest the 4th at 145 yd. The map shows 7 bunkers. Water is in play on the 13th.
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 · 322 yd
Plays west. 1 bunker.
Green 30 yd deep, 27 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 397 yd
Plays west.
Green 35 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 348 yd
Plays south.
Green 31 yd deep, 25 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 145 yd
Plays east. 1 bunker.
Green 34 yd deep, 25 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 539 yd
Plays south.
Green 31 yd deep, 35 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 190 yd
Plays south-west. 1 bunker.
Green 24 yd deep, 35 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 526 yd
Plays north. Dogleg left.
Green 33 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 328 yd
Plays north-east. Dogleg right. 1 bunker.
Green 28 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 379 yd
Plays east. 1 bunker.
Green 30 yd deep, 24 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 302 yd
Plays south.
Green 21 yd deep, 25 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 300 yd
Plays north-west. 2 bunkers.
Green 26 yd deep, 20 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 208 yd
Plays west. 1 bunker.
Green 28 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 157 yd
Plays south. Water.
Green 25 yd deep, 26 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 518 yd
Plays south.
Green 34 yd deep, 30 yd wide. Falls 6% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 552 yd
Plays north.
Green 35 yd deep, 25 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 177 yd
Plays south-east.
Green 22 yd deep, 23 yd wide. Falls 7% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 402 yd
Plays east. 1 bunker.
Green 23 yd deep, 16 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 393 yd
Plays north.
Green 30 yd deep, 19 yd wide. Falls 2% 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.