Open Haystack Mountain in GolfCore Get the free app
The course, by the numbers
| Location | Lyons, Colorado, United States |
|---|---|
| Address | 5877 Co Rd 43, Lyons, CO 80540 |
| Phone | +1 303-823-6454 |
| Website | haystackgolf.com |
| Holes | 9 |
| Course map | Traced hole by hole |
| Wind modeling | Live wind grid, 16 directions |
| Tree canopy | 1-meter canopy height model |
| Course data updated | 2026-08-11 |
The card
| Hole | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Out |
|---|---|---|---|---|---|---|---|---|---|---|
| Par | – | – | – | – | – | – | – | – | – | – |
| Yards | 252 | 273 | 336 | 161 | 266 | 214 | 134 | 312 | 119 | 2,067 |
| Hole | Par | Yards |
|---|---|---|
| 1 | – | 252 |
| 2 | – | 273 |
| 3 | – | 336 |
| 4 | – | 161 |
| 5 | – | 266 |
| 6 | – | 214 |
| 7 | – | 134 |
| 8 | – | 312 |
| 9 | – | 119 |
| Out | – | 2,067 |
Hole data is what GolfCore holds for the course's layout. Clubs correct their own data in the app.
What GolfCore has for Haystack Mountain
Haystack Mountain Golf Course in Lyons, Colorado is in the GolfCore library with its location and its 9 holes. Its course map is traced, so the app draws the property, the fairways and the greens. The property is modelled from the same public lidar: a 1-meter canopy height model of every tree standing on it, and a wind grid solved for sixteen directions at two heights. The green contour maps are baked from lidar and this course has not been through that yet.
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. GolfCore has mapped more than six thousand courses green by green, and the library grows every week.
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
- Lake Valley Golf Club green maps · 2 mi
- Boulder Country Club green maps · 3 mi
- Flatirons Golf Course green maps · 6 mi
- Twin Peaks Golf Course green maps · 6 mi
- Indian Peaks Golf Course green maps · 9 mi
- Fox Hill Club, The green maps · 9 mi
Staff at Haystack Mountain 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.