Byron Hills Golf Course

Every green at Byron Hills in Port Byron, Illinois traced contour by contour, with fall lines, daily pins, and live wind in the GolfCore app.

GolfCore is not affiliated with or endorsed by Byron Hills Golf Course.

The course map of Byron Hills: fairways, tees, greens, bunkers and water traced hole by hole, the same map the app plays a round on.
  • 18Holes
  • 71Par
  • 8Rated tees
  • 18Greens mapped
  • 234Contours
  • 15.3%Steepest slope

About Byron Hills

Byron Hills Golf Course is an 18-hole golf course playing to par 71 in Port Byron, Illinois. It opened in 1966. GolfCore has mapped 18 greens here with contour lines and fall-line arrows. The card below lists 8 rated tees with yardages for all 18 holes. GPS yardages and scoring are free in the GolfCore app.

Plan your visit

23316 94th Ave. N, Port Byron, IL

+1 309-523-2664

Green contour map of Byron Hills in Port Byron, Illinois: 234 elevation contours at a 3-inch interval with fall-line arrows, traced from 1-meter lidar
One of 18 mapped greens at Byron Hills. Cool colors sit low and warm colors high; white lines are contours at a 3-inch interval, and the arrows point down the fall line.

How the greens break

GolfCore traced 18 greens at Byron Hills from USGS 3DEP 1-meter lidar, with 234 elevation contours at a 3-inch interval. The steepest measured slope is 15.3 percent, and the largest rise across a single green is 5.5 ft.

In the app the same map sits under your ball on every green, with the fall line drawn to the hole and the wind modeled at your position. At clubs that run GolfCore, the pins the shop sets each morning show up there too.

Elevation: USGS 3D Elevation Program, U.S. Geological Survey, National Geospatial Program (public domain), processed by GolfCore.

The card

5,837 yds · Par 71 · Rating 68.1 · Slope 118

Hole 123456789 Out
Par 434544353 35
Yards 335133353512330298120485190 2,756
Hcp 9135371517111
Hole 101112131415161718 In
Par 544543434 36
Yards 470434370515377174407160374 3,281
Hcp 82106121641814

Total71 Yards6,037

Hole Par Yards Hcp
1 4 335 9
2 3 133 13
3 4 353 5
4 5 512 3
5 4 330 7
6 4 298 15
7 3 120 17
8 5 485 1
9 3 190 11
Out 35 2,756
10 5 470 8
11 4 434 2
12 4 370 10
13 5 515 6
14 4 377 12
15 3 174 16
16 4 407 4
17 3 160 18
18 4 374 14
In 36 3,281
Total 71 6,037

Course rating and slope

TeeYardsParRating / Slope
Blue 6,465 71 76.3 / 135 (W)
Blue 6,194 71 69.7 / 123
White 5,837 71 68.1 / 118 73.7 / 131 (W)
Gold 5,385 71 65.9 / 113 71.1 / 125 (W)
Red 4,864 71 63.8 / 106 68.6 / 118 (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. Spot a wrong par, yardage or stroke index? Report it from Map Settings in the app, or send us a correction.

Course details

Location
Port Byron, Illinois, United States
Address
23316 94th Ave. N, Port Byron, IL
Opened
1966
Holes
18
Par
71
Tees on the card
8, 8 USGA-rated
Greens mapped
18
Elevation contours
234
Contour interval
3-inch
Largest green elevation span
5.5 ft
Steepest measured slope
15.3%
Course map
Traced hole by hole
Wind modeling
Live wind grid, 16 directions
Tree canopy
1-meter canopy height model
Course data updated
2026-11-10

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Staff at Byron Hills can claim this course by signing in with an email address at the club's own domain, then edit its address, phone, website and crest at no charge. Read how a club keeps its course right. The same system runs a club's tee sheet and caddie yard; read how caddie management on GolfCore works.

GolfCore maps courses from public elevation data and is not affiliated with or endorsed by Byron Hills.