Arsenal 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.

20Greens Mapped 156Elevation Contours 6.5%Steepest Slope

Green contour map of Arsenal Island in Rock Island, Illinois — 156 elevation contours at a 3-inch interval with fall-line arrows, traced from 1-meter lidar — One of 20 mapped greens at Arsenal 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

Location	Rock Island, Illinois, United States
Address	1838 Gillespie Street, Rock Island, 61201
Phone	+1 309-793-1601
Website	arsenalislandgolf.com
Greens mapped	20
Elevation contours	156
Contour interval	3-inch
Largest green elevation span	3.4 ft
Steepest measured slope	6.5%
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

What GolfCore has for Arsenal Island

GolfCore's library covers Arsenal Island Golf Course green by green: 20 putting surfaces traced with 156 elevation contours from USGS 3DEP 1-meter lidar. The steepest measured slope on these greens tilts at 6.5 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. Arsenal Island 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 Arsenal 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.

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