Emerald 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.

23Greens Mapped 277Elevation Contours 8.9%Steepest Slope 18Holes 72Par 7Rated Tees

Green contour map of Emerald in St. Johns, Michigan — 277 elevation contours at a 3-inch interval with fall-line arrows, traced from 1-meter lidar — One of 23 mapped greens at Emerald, 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

Location	St. Johns, Michigan, United States
Address	2300 West Maple Rapids Road, Saint Johns, MI, 48879
Phone	+1-989-224-6287
Website	emeraldgolfcourse.com
Holes	18
Par	72
Tees on the card	7, 7 USGA-rated
Greens mapped	23
Elevation contours	277
Contour interval	3-inch
Largest green elevation span	5.0 ft
Steepest measured slope	8.9%
Course map	Traced hole by hole
Wind modeling	Live wind grid, 16 directions
Tree canopy	1-meter canopy height model
Course data updated	2026-08-07

The card

Tees

6,596 yds · Par 72 · Rating 72.8 · Slope 141

Hole	1	2	3	4	5	6	7	8	9	Out
Par	4	4	5	3	4	4	5	3	4	36
Yards	395	383	542	223	332	433	547	150	403	3,408
Hcp	5	9	13	7	17	1	11	15	3

Hole	10	11	12	13	14	15	16	17	18	In
Par	4	4	3	4	4	5	3	5	4	36
Yards	317	334	187	384	444	511	198	451	362	3,188
Hcp	18	16	6	8	10	2	12	4	14

Total72 Yards6,596

Hole	Par	Yards	Hcp
1	4	395	5
2	4	383	9
3	5	542	13
4	3	223	7
5	4	332	17
6	4	433	1
7	5	547	11
8	3	150	15
9	4	403	3
Out	36	3,408
10	4	317	18
11	4	334	16
12	3	187	6
13	4	384	8
14	4	444	10
15	5	511	2
16	3	198	12
17	5	451	4
18	4	362	14
In	36	3,188
Total	72	6,596

Course rating and slope

Tee	Yards	Par	Rating / Slope
Emerald	6,596	72	72.8 / 141
Diamond	6,106	72	70.1 / 130
Silver	5,589	72	68.5 / 123
Gold	5,375	72	67.5 / 120 71.9 / 129 (W)
Ruby	5,031	72	66.1 / 113 70.1 / 124 (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 Emerald

GolfCore's library covers Emerald Golf Course green by green: 23 putting surfaces traced with 277 elevation contours from USGS 3DEP 1-meter lidar. The steepest measured slope on these greens tilts at 8.9 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. Emerald Golf Course 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 Emerald 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 Emerald. Represent this club? Request changes or removal through our contact page.