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Rock At Drummond Island

Every green at Rock At Drummond Island in Drummond Island, Michigan traced contour by contour, with fall lines, daily pins, and live wind in the GolfCore app.

GolfCore is not affiliated with or endorsed by Rock At Drummond Island.

Open Rock At Drummond Island in GolfCore

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Rock At Drummond Island 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.
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17Greens Mapped 183Elevation Contours 9.1%Steepest Slope 18Holes 71Par 6Rated Tees
Green contour map of Rock At Drummond Island in Drummond Island, Michigan — 183 elevation contours at a 3-inch interval with fall-line arrows, traced from 1-meter lidar
One of 17 mapped greens at Rock At Drummond Island, drawn from GolfCore's contour data baked from USGS 3DEP 1-meter lidar, in the same colors the app uses. Elevation bands run cool-low to warm-high; white lines are contours at a 3-inch interval, and dark arrows point down the fall line.

The course, by the numbers

LocationDrummond Island, Michigan, United States
Holes18
Par71
Tees on the card6, 6 USGA-rated
Greens mapped17
Elevation contours183
Contour interval3-inch
Largest green elevation span4.7 ft
Steepest measured slope9.1%
Course mapTraced hole by hole
Wind modelingLive wind grid, 16 directions
Tree canopy1-meter canopy height model
Course data updated2026-09-23

The card

5,660 yds · Par 71 · Rating 67.8 · Slope 126

Hole 123456789 Out
Par 534444434 35
Yards 471113305358298344387142332 2,750
Hcp 5153131191177
Hole 101112131415161718 In
Par 435443445 36
Yards 355149464324333119336318512 2,910
Hcp 61848121610142

Total71 Yards5,660

Hole Par Yards Hcp
1 5 471 5
2 3 113 15
3 4 305 3
4 4 358 13
5 4 298 11
6 4 344 9
7 4 387 1
8 3 142 17
9 4 332 7
Out 35 2,750
10 4 355 6
11 3 149 18
12 5 464 4
13 4 324 8
14 4 333 12
15 3 119 16
16 4 336 10
17 4 318 14
18 5 512 2
In 36 2,910
Total 71 5,660

Course rating and slope

TeeYardsParRating / Slope
Gold 6,691 71 73.1 / 136
Blue 6,225 71 70.4 / 131
White 5,660 71 67.8 / 126 73.7 / 132 (W)
Green 4,918 71 64.7 / 112 68.9 / 122 (W)

Hole data is what GolfCore holds for the course's layout. Picking a tee shows that tee's own yardages, pars and stroke indexes where the club has rated them. Clubs correct their own data in the app.

What GolfCore has for Rock At Drummond Island

GolfCore's library covers Rock At Drummond Island green by green: 17 putting surfaces traced with 183 elevation contours from USGS 3DEP 1-meter lidar. The steepest measured slope on these greens tilts at 9.1 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. Rock At Drummond Island is one of more than fourteen 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.

More courses nearby

Approximate straight-line distances from Rock At Drummond Island. Driving distances and travel times will vary.

Staff at Rock At Drummond Island 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.

Open this course in GolfCore Caddie Management

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