- 18Holes
- 72Par
- 5Rated tees
- 18Greens mapped
- 250Contours
- 18.8%Steepest slope
About Timberline
Timberline Golf Course is an 18-hole golf course playing to par 72 in Peosta, Iowa. Mike Hall designed it, and it opened in 1978. GolfCore has mapped 18 greens here with contour lines and fall-line arrows. The card below lists 5 rated tees with yardages for all 18 holes. GPS yardages and scoring are free in the GolfCore app.
Plan your visit
19858 East Pleasant Grove Rd., Peosta, IA
+1 563-876-3422
How the greens break
GolfCore traced 18 greens at Timberline from USGS 3DEP 1-meter lidar, with 250 elevation contours at a 3-inch interval. The steepest measured slope is 18.8 percent, and the largest rise across a single green is 6.0 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 | 5 | 3 | 4 | 3 | 5 | 4 | 4 | 4 | 36 |
| Yards | 309 | 335 | 139 | 220 | 152 | 323 | 345 | 220 | 227 | 2,270 |
| Hcp | 10 | 16 | 12 | 14 | 4 | 18 | 2 | 8 | 6 |
| Hole | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | In |
|---|---|---|---|---|---|---|---|---|---|---|
| Par | 4 | 5 | 3 | 4 | 3 | 4 | 4 | 5 | 5 | 37 |
| Yards | 270 | 322 | 118 | 214 | 142 | 260 | 225 | 240 | 360 | 2,151 |
| Hcp | 11 | 17 | 15 | 7 | 13 | 1 | 9 | 5 | 3 |
Total73 Yards4,421
| Hole | Par | Yards | Hcp |
|---|---|---|---|
| 1 | 4 | 309 | 10 |
| 2 | 5 | 335 | 16 |
| 3 | 3 | 139 | 12 |
| 4 | 4 | 220 | 14 |
| 5 | 3 | 152 | 4 |
| 6 | 5 | 323 | 18 |
| 7 | 4 | 345 | 2 |
| 8 | 4 | 220 | 8 |
| 9 | 4 | 227 | 6 |
| Out | 36 | 2,270 | |
| 10 | 4 | 270 | 11 |
| 11 | 5 | 322 | 17 |
| 12 | 3 | 118 | 15 |
| 13 | 4 | 214 | 7 |
| 14 | 3 | 142 | 13 |
| 15 | 4 | 260 | 1 |
| 16 | 4 | 225 | 9 |
| 17 | 5 | 240 | 5 |
| 18 | 5 | 360 | 3 |
| In | 37 | 2,151 | |
| Total | 73 | 4,421 |
Course rating and slope
| Tee | Yards | Par | Rating / Slope |
|---|---|---|---|
| Black | 6,557 | 72 | 72.2 / 120 |
| Silver | 6,131 | 72 | 70.4 / 114 |
| Red | 5,256 | 73 | 66.1 / 107 71.2 / 113 (W) |
| White | 4,421 | 73 | 66.2 / 103 (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
- Peosta, Iowa, United States
- Address
- 19858 East Pleasant Grove Rd., Peosta, IA
- Phone
- +1 563-876-3422
- Website
- timberlinegolf.com
- Architect
- Mike Hall
- Opened
- 1978
- Holes
- 18
- Par
- 72
- Tees on the card
- 6, 5 USGA-rated
- Greens mapped
- 18
- Elevation contours
- 250
- Contour interval
- 3-inch
- Largest green elevation span
- 6.0 ft
- Steepest measured slope
- 18.8%
- Course map
- Traced hole by hole
- Wind modeling
- Live wind grid, 16 directions
- Tree canopy
- 1-meter canopy height model
- Course data updated
- 2026-10-13
More courses nearby
Straight-line distance from Timberline Golf Course.
-
Thunder Hills Country ClubPeosta, Iowa5.4 mi straight-line
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- Meadows Golf Club
Maquoketa, Iowa9.3 mi straight-line
18 holes, par 72, scorecard, course map, green maps
-
Dubuque Golf & Country ClubDubuque, Iowa12 mi straight-line
18 holes, par 70, scorecard, course map, green maps
-
Fillmore Fairways Golf CourseCascade, Iowa4.7 mi straight-line
9 holes, par 36, scorecard, course map, green maps
-
Derby Grange Golf & Recreation CenterDubuque, Iowa12.2 mi straight-line
10 holes, scorecard, course map, green maps
- Rolling Knolls Golf Course
Durant, Iowa12.4 mi straight-line
9 holes, par 34, scorecard, course map
Staff at Timberline 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.