Hole 1
Par 4 · 446 yd
Plays north. Dogleg left. 6 bunkers.
Green 34 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Talleyville, Delaware, USA
18 holes, par 71, about 7,002 yards (6,403 metres) along the hole lines. The par 3s are 5, 8, 13 and 17. The par 5s are 9, 11 and 16. The longest hole is the 11th at 605 yd, the shortest the 5th at 184 yd. The map shows 96 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 · 446 yd
Plays north. Dogleg left. 6 bunkers.
Green 34 yd deep, 25 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 432 yd
Plays south-east. Dogleg right. 5 bunkers.
Green 32 yd deep, 27 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 428 yd
Plays south-east. Dogleg left. 7 bunkers.
Green 32 yd deep, 32 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 377 yd
Plays north-east. Dogleg right. 7 bunkers.
Green 36 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 184 yd
Plays west. 3 bunkers.
Green 28 yd deep, 32 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 381 yd
Plays south. 7 bunkers.
Green 33 yd deep, 28 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 400 yd
Plays north. Dogleg right. 10 bunkers.
Green 32 yd deep, 28 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 209 yd
Plays west. 4 bunkers.
Green 39 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 549 yd
Plays south. Dogleg right. 4 bunkers.
Green 37 yd deep, 34 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 369 yd
Plays south-east. 5 bunkers.
Green 65 yd deep, 43 yd wide. Falls 5% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 605 yd
Plays north-east. 8 bunkers.
Green 34 yd deep, 31 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 374 yd
Plays north-east. Dogleg left. 6 bunkers.
Green 35 yd deep, 34 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 240 yd
Plays west. 3 bunkers.
Green 35 yd deep, 32 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 408 yd
Plays south-west. Dogleg left. 11 bunkers.
Green 34 yd deep, 24 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 432 yd
Plays north-east. 6 bunkers.
Green 35 yd deep, 31 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 568 yd
Plays south-west. 7 bunkers.
Green 34 yd deep, 27 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 186 yd
Plays south-west. 5 bunkers.
Green 28 yd deep, 32 yd wide. Nearly flat overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 416 yd
Plays north-west. Dogleg left. 6 bunkers.
Green 36 yd deep, 25 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.