River Oaks 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 221Elevation Contours 8.3%Steepest Slope 18Holes 70Par 6Rated Tees

Green contour map of River Oaks in Calumet City, Illinois — 221 elevation contours at a 3-inch interval with fall-line arrows, traced from 1-meter lidar — One of 18 mapped greens at River Oaks, 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	Calumet City, Illinois, United States
Holes	18
Par	70
Tees on the card	6, 6 USGA-rated
Greens mapped	18
Elevation contours	221
Contour interval	3-inch
Largest green elevation span	3.9 ft
Steepest measured slope	8.3%
Course map	Traced hole by hole
Wind modeling	Live wind grid, 16 directions
Tree canopy	1-meter canopy height model
Course data updated	2026-08-27

The card

Tees

5,489 yds · Par 70 · Rating 66.6 · Slope 113

Hole	1	2	3	4	5	6	7	8	9	Out
Par	4	4	3	5	4	3	4	5	4	36
Yards	370	318	167	484	387	149	300	439	388	3,002
Hcp	9	10	15	2	4	17	14	8	7

Hole	10	11	12	13	14	15	16	17	18	In
Par	3	5	4	4	3	4	4	3	4	34
Yards	146	438	299	303	180	302	313	135	371	2,487
Hcp	16	5	13	12	6	1	11	18	3

Total70 Yards5,489

Hole	Par	Yards	Hcp
1	4	370	9
2	4	318	10
3	3	167	15
4	5	484	2
5	4	387	4
6	3	149	17
7	4	300	14
8	5	439	8
9	4	388	7
Out	36	3,002
10	3	146	16
11	5	438	5
12	4	299	13
13	4	303	12
14	3	180	6
15	4	302	1
16	4	313	11
17	3	135	18
18	4	371	3
In	34	2,487
Total	70	5,489

Course rating and slope

Tee	Yards	Par	Rating / Slope
Blue	5,693	70	67.5 / 115 72.6 / 125 (W)
White	5,489	70	66.6 / 113 71.5 / 123 (W)
Red	5,137	70	65.0 / 109 69.5 / 119 (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 River Oaks

GolfCore's library covers River Oaks Golf Course green by green: 18 putting surfaces traced with 221 elevation contours from USGS 3DEP 1-meter lidar. The steepest measured slope on these greens tilts at 8.3 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. River Oaks 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 River Oaks 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 River Oaks. Represent this club? Request changes or removal through our contact page.