- 18Holes
- 71Par
- 6Rated tees
- 18Greens mapped
- 191Contours
- 7.4%Steepest slope
About Blue Mash
Blue Mash Golf Course is an 18-hole golf course playing to par 71 in Laytonsville, Maryland. Arthur Hills designed it, and it opened in 2001. GolfCore has mapped 18 greens here with contour lines and fall-line arrows. The card below lists 6 rated tees with yardages for all 18 holes. GPS yardages and scoring are free in the GolfCore app.
Plan your visit
5821 Olney-Laytonsville Road, MD
+1 410-795-9100
How the greens break
GolfCore traced 18 greens at Blue Mash from USGS 3DEP 1-meter lidar, with 191 elevation contours at a 3-inch interval. The steepest measured slope is 7.4 percent, and the largest rise across a single green is 4.5 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
| Hole | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | Out |
|---|---|---|---|---|---|---|---|---|---|---|
| Par | 4 | 4 | 4 | 3 | 5 | 3 | 4 | 4 | 5 | 36 |
| Yards | 389 | 401 | 426 | 172 | 508 | 127 | 301 | 259 | 500 | 3,083 |
| Hcp | 7 | 9 | 5 | 15 | 3 | 17 | 11 | 13 | 1 |
| Hole | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | In |
|---|---|---|---|---|---|---|---|---|---|---|
| Par | 4 | 3 | 5 | 3 | 4 | 4 | 4 | 3 | 5 | 35 |
| Yards | 337 | 189 | 446 | 130 | 334 | 373 | 430 | 158 | 521 | 2,918 |
| Hcp | 12 | 14 | 6 | 18 | 10 | 8 | 4 | 16 | 2 |
Total71 Yards6,001
| Hole | Par | Yards | Hcp |
|---|---|---|---|
| 1 | 4 | 389 | 7 |
| 2 | 4 | 401 | 9 |
| 3 | 4 | 426 | 5 |
| 4 | 3 | 172 | 15 |
| 5 | 5 | 508 | 3 |
| 6 | 3 | 127 | 17 |
| 7 | 4 | 301 | 11 |
| 8 | 4 | 259 | 13 |
| 9 | 5 | 500 | 1 |
| Out | 36 | 3,083 | |
| 10 | 4 | 337 | 12 |
| 11 | 3 | 189 | 14 |
| 12 | 5 | 446 | 6 |
| 13 | 3 | 130 | 18 |
| 14 | 4 | 334 | 10 |
| 15 | 4 | 373 | 8 |
| 16 | 4 | 430 | 4 |
| 17 | 3 | 158 | 16 |
| 18 | 5 | 521 | 2 |
| In | 35 | 2,918 | |
| Total | 71 | 6,001 |
Course rating and slope
| Tee | Yards | Par | Rating / Slope |
|---|---|---|---|
| Gold | 6,885 | 71 | 73.3 / 133 |
| Blue | 6,502 | 71 | 71.6 / 128 |
| Blue/White | 6,294 | 71 | 69.6 / 124 |
| White | 6,001 | 71 | 69.0 / 124 |
| Green | 5,438 | 71 | 65.7 / 108 |
| Red (L) | 4,966 | 71 | 68.9 / 113 (W) |
| Red | 4,966 | 72 | – |
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
- Laytonsville, Maryland, United States
- Address
- 5821 Olney-Laytonsville Road, MD
- Phone
- +1 410-795-9100
- Website
- bluemash.com
- Architect
- Arthur Hills
- Opened
- 2001
- Holes
- 18
- Par
- 71
- Tees on the card
- 7, 6 USGA-rated
- Greens mapped
- 18
- Elevation contours
- 191
- Contour interval
- 3-inch
- Largest green elevation span
- 4.5 ft
- Steepest measured slope
- 7.4%
- Course map
- Traced hole by hole
- Wind modeling
- Live wind grid, 16 directions
- Tree canopy
- 1-meter canopy height model
- Course data updated
- 2026-10-26
More courses nearby
Straight-line distance from Blue Mash Golf Course.
- Laytonsville Golf Course
Laytonsville, Maryland1.7 mi straight-line
18 holes, par 71, scorecard, course map, green maps
-
Norbeck Country ClubRockville, Maryland3.5 mi straight-line
18 holes, par 72, scorecard, course map, green maps
-
Needwood Golf CourseDerwood, Maryland5 mi straight-line
18 holes, par 70, scorecard, course map, green maps
-
Montgomery Country ClubLaytonsville, Maryland1.3 mi straight-line
18 holes, par 72, scorecard, green maps
- Olney Golf Park
Olney, Maryland4.6 mi straight-line
Course map
- Trotters Glen Golf Course
Olney, Maryland5.3 mi straight-line
18 holes, par 72, scorecard
Staff at Blue Mash 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.