The Greg Mastriona Golf Courses at Hyland Hills

Every green at Greg Mastriona Hills in Westminster, Colorado traced contour by contour, with fall lines, daily pins, and live wind in the GolfCore app.

GolfCore is not affiliated with or endorsed by The Greg Mastriona Golf Courses at Hyland Hills.

Greg Mastriona Hills 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.
10Greens Mapped 62Elevation Contours 7.8%Steepest Slope 9Holes 27Par
Green contour map of Greg Mastriona Hills in Westminster, Colorado — 62 elevation contours at a 3-inch interval with fall-line arrows, traced from 1-meter lidar
One of 10 mapped greens at Greg Mastriona Hills, 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

LocationWestminster, Colorado, United States
Address9653 W 98th Ave, Westminster, CO 80021
Phone+1 303-650-7400
Websitethunderridgeresort.com/golf/hyland-hills
Holes9
Par27
Greens mapped10
Elevation contours62
Contour interval3-inch
Largest green elevation span3.1 ft
Steepest measured slope7.8%
Course mapTraced hole by hole
Wind modelingLive wind grid, 16 directions
Tree canopy1-meter canopy height model
Course data updated2026-08-11

The card

Hole 123456789 Out
Par 333333333 27
Yards 7578891067114320083173 1,018
Hole Par Yards
1 3 75
2 3 78
3 3 89
4 3 106
5 3 71
6 3 143
7 3 200
8 3 83
9 3 173
Out 27 1,018

Hole data is what GolfCore holds for the course's layout. Clubs correct their own data in the app.

What GolfCore has for Greg Mastriona Hills

GolfCore's library covers The Greg Mastriona Golf Courses at Hyland Hills green by green: 10 putting surfaces traced with 62 elevation contours from USGS 3DEP 1-meter lidar. The steepest measured slope on these greens tilts at 7.8 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. The Greg Mastriona Golf Courses at Hyland Hills 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 Greg Mastriona Hills 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 Greg Mastriona Hills. Represent this club? Request changes or removal through our contact page.