Thornhill drawn from GolfCore's traced course vectors — fairways, tees, greens, bunkers and water, in the app's own colors. This is the same geometry the app maps a round on.

18Greens Mapped 255Elevation Contours 9.6%Steepest Slope 18Holes 72Par 17Rated Tees

Green contour map of Thornhill in Vaughan, Canada — 255 elevation contours at a 8-centimeter interval with fall-line arrows, traced from 1-meter lidar — One of 18 mapped greens at Thornhill, drawn from GolfCore's contour data baked from 1-meter national lidar elevation data, in the same colors the app uses. Elevation bands run cool-low to warm-high; white lines are contours at a 8-centimeter interval, and dark arrows point down the fall line.

The course, by the numbers

Location	Vaughan, Canada
Address	7994 Yonge St, Thornhill, ON L4J 1W3, Canada
Phone	+1 905-889-1121
Website	thornhillgcc.com
Holes	18
Par	72
Tees on the card	17, 17 USGA-rated
Greens mapped	18
Elevation contours	255
Contour interval	8-centimeter
Largest green elevation span	1.76 m
Steepest measured slope	9.6%
Course map	Traced hole by hole
Wind modeling	Live wind grid, 16 directions
Tree canopy	1-meter canopy height model
Course data updated	2026-09-01

The card

Tees

6,645 yds · Par 71 · Rating 72.9 · Slope 137

Hole	1	2	3	4	5	6	7	8	9	Out
Par	4	4	4	4	4	4	3	5	4	36

Hole	10	11	12	13	14	15	16	17	18	In
Par	3	4	3	4	4	5	4	5	4	36

Total72

Hole	Par
1	4
2	4
3	4
4	4
5	4
6	4
7	3
8	5
9	4
Out	36
10	3
11	4
12	3
13	4
14	4
15	5
16	4
17	5
18	4
In	36
Total	72

Course rating and slope

Tee	Yards	Par	Rating / Slope
Championship	6,645	71	72.9 / 137
Thompson	6,330	71	71.3 / 134 77.3 / 143 (W)
Noble	6,076	71	70.0 / 131 75.8 / 141 (W)
Nelson	5,797	71	68.7 / 129 74.2 / 138 (W)
Nelson*	5,758	71	68.6 / 127 74.1 / 137 (W)
Presidents	5,555	71	67.4 / 126 72.9 / 132 (W)
Gourlay	5,206	71	65.9 / 121 70.8 / 127 (W)
Captains	5,008	71	65.1 / 116 69.7 / 125 (W)
Lind	4,845	71	64.4 / 113 68.7 / 124 (W)

Hole data is what GolfCore holds for the course's layout. Clubs correct their own data in the app.

What GolfCore has for Thornhill

GolfCore's library covers Thornhill Country Club green by green: 18 putting surfaces traced with 255 elevation contours from 1-meter national lidar elevation data. The steepest measured slope on these greens tilts at 9.6 percent — the difference between a putt that dies at the hole and one that runs four feet past.

In the app, players and caddies read the same data live on the course: contour bands with fall-line arrows, wind simulated at the player's position, and pin positions that clubs on GolfCore set each morning. Thornhill Country Club is one of more than six thousand courses GolfCore has mapped green by green.

For clubs, the same system runs the tee sheet and the caddie yard — assignments off real tee times, SMS confirmations, and a caddie network that spans every club on the platform. Read how caddie management on GolfCore works.

Courses nearby

Staff at Thornhill can claim this course by signing in with an email address at the club's own domain. That sets the club up on GolfCore with you as an administrator.

GolfCore maps courses from public elevation data and is not affiliated with or endorsed by Thornhill. Represent this club? Request changes or removal through our contact page.