Hole 1
Par 4 · 369 yd
Plays south-west. 2 bunkers and water.
Green 37 yd deep, 23 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Golf course in Blue Hills, Connecticut, USA
9 holes, par 35, about 3,259 yards (2,980 metres) along the hole lines. The par 3s are 3 and 6. The only par 5 is the 8th. The longest hole is the 8th at 518 yd, the shortest the 6th at 172 yd. The map shows 133 bunkers. Water is in play on holes 1 and 6.
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 · 369 yd
Plays south-west. 2 bunkers and water.
Green 37 yd deep, 23 yd wide. Falls 1% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 388 yd
Plays north. Dogleg left. 6 bunkers.
Green 24 yd deep, 30 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 202 yd
Plays north-west. 3 bunkers.
Green 26 yd deep, 22 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 443 yd
Plays east. Dogleg left. 6 bunkers.
Green 31 yd deep, 26 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 412 yd
Plays south-west. Dogleg left. 5 bunkers.
Green 35 yd deep, 28 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 3 · 172 yd
Plays east. 4 bunkers and water.
Green 33 yd deep, 23 yd wide. Falls 4% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 357 yd
Plays west. 6 bunkers.
Green 26 yd deep, 21 yd wide. Falls 2% overall. An arrow every 4 m here, every 2 m in the app.
Par 5 · 518 yd
Plays north. Dogleg left. 9 bunkers.
Green 35 yd deep, 25 yd wide. Falls 3% overall. An arrow every 4 m here, every 2 m in the app.
Par 4 · 397 yd
Plays east. Dogleg left. 3 bunkers.
Green 32 yd deep, 23 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.