COURSE PREVIEW · GRAVEL · STEAMBOAT SPRINGS, COLORADO

SBT GRVL Blue course preview

The 2027 SBT GRVL Blue course is 73.4 mi (118.1 km) and finishes where it starts, with 5,385 ft of climbing. RideMorrow finds 25 distinct climbs and 16 descents; the listed climbs account for 76% of the total ascent, and the rest comes from shorter rollers. The hardest climb by FIETS score starts at 33.4 mi: 0.59 mi at an average 8.5%, peaking at 17.1% over 100 m. The longest is 3.45 mi, starting at 7.3 mi. The second quarter holds the most climbing (39%).

Get your free ride briefing Official course

CourseClimbsStart

Distance: 73.4 mi118.1 km
Elevation gain: 5,385 ft1,641 m
Climbs: 2516 descents
Steepest 100 m: 17.1%On a listed climb
Corners: 16730 technical
High point: 8,263 ftLow 6,584 ft

Elevation profile

Shaded: every listed climb. Numbered: the hardest.

First quarter1,368 ft0 mi–18 mi

Second quarter2,108 ft18 mi–37 mi

Third quarter670 ft37 mi–55 mi

Final quarter1,236 ft55 mi–73 mi

The 5 hardest climbs

Ranked by FIETS score

1
Climb 18 · from 33.4 mi0.59 mi · 266 ft up · 8.5% average, 17.1% steepest
0.7
2
Climb 23 · from 56.8 mi0.86 mi · 280 ft up · 6.1% average, 10.4% steepest
0.5
3
Climb 25 · from 58.9 mi2.52 mi · 470 ft up · 3.5% average, 9.0% steepest
0.5
4
Climb 15 · from 28.5 mi2.22 mi · 399 ft up · 3.4% average, 9.3% steepest
0.4
5
Climb 21 · from 45.2 mi0.57 mi · 193 ft up · 6.4% average, 8.6% steepest
0.4

Every climb, in ride order

25 climbs · top 5 highlighted

Climb	Starts at	Length	Elevation gain	Avg grade	Steepest 100 m	FIETS
1	1.2 mi	0.57 mi	88 ft	2.9%	9.6%	0.1
2	7.3 mi	3.45 mi	433 ft	2.4%	5.6%	0.3
3	10.9 mi	1.01 mi	181 ft	3.4%	5.3%	0.2
4	14.9 mi	0.71 mi	140 ft	3.7%	6.7%	0.2
5	16.7 mi	0.40 mi	117 ft	5.5%	10.2%	0.2
6	17.8 mi	0.61 mi	75 ft	2.3%	4.7%	0.1
7	18.9 mi	1.16 mi	177 ft	2.9%	8.1%	0.2
8	20.6 mi	0.52 mi	75 ft	2.7%	5.1%	0.1
9	21.6 mi	0.47 mi	97 ft	3.9%	9.2%	0.1
10	23.7 mi	0.32 mi	104 ft	6.1%	8.7%	0.2
11	24.7 mi	0.75 mi	93 ft	2.4%	5.6%	0.1
12	25.5 mi	1.07 mi	110 ft	2.0%	7.2%	0.1
13	26.8 mi	0.70 mi	116 ft	3.1%	6.3%	0.1
14	27.9 mi	0.47 mi	78 ft	3.1%	8.8%	0.1
15	28.5 mi	2.22 mi	399 ft	3.4%	9.3%	0.4
16	31.2 mi	0.88 mi	183 ft	3.9%	13.2%	0.2
17	32.3 mi	0.35 mi	113 ft	6.1%	11.1%	0.2
18	33.4 mi	0.59 mi	266 ft	8.5%	17.1%	0.7
19	37.3 mi	0.45 mi	95 ft	4.0%	8.5%	0.1
20	38.0 mi	0.21 mi	91 ft	8.4%	14.2%	0.2
21	45.2 mi	0.57 mi	193 ft	6.4%	8.6%	0.4
22	56.2 mi	0.43 mi	72 ft	3.1%	8.9%	0.1
23	56.8 mi	0.86 mi	280 ft	6.1%	10.4%	0.5
24	58.0 mi	0.65 mi	70 ft	2.0%	5.6%	0.0
25	58.9 mi	2.52 mi	470 ft	3.5%	9.0%	0.5

Descents

16 descents drop 3,996 ft in total. The steepest:

Descent 4 · from 32.6 mi 0.75 mi at 7.8% average, 15.6% at its steepest
Descent 5 · from 34.0 mi 3.29 mi at 4.3% average, 14.0% at its steepest
Descent 2 · from 15.6 mi 1.11 mi at 6.9% average, 10.7% at its steepest
Descent 6 · from 38.2 mi 2.39 mi at 4.4% average, 9.8% at its steepest
Descent 8 · from 43.9 mi 0.29 mi at 5.4% average, 9.7% at its steepest

Corners

167 corners detected from the course geometry, 35 of them on a descent.

4 Very technical
26 Technical
62 Moderate
75 Gentle

Technical corners on descents

12.7 mi 35° left bend on a 9.2% approach · Technical
15.8 mi 45° right bend on a 8.0% approach · Technical
15.9 mi 39° left bend on a 7.2% approach · Technical
16.2 mi 31° right bend on a 9.2% approach · Technical
16.3 mi 30° left bend on a 9.7% approach · Technical
21.7 mi 36° left bend on a 3.0% approach · Technical

Corners describe the line on the map, not road conditions. Sightlines, grip and traffic aren't known.

SBT GRVL Blue course FAQ

How much climbing is in the SBT GRVL Blue?

5,385 ft (1,641 m) over 73.4 mi, measured from the organizer's course file with the elevation smoothed and small fluctuations ignored. Other tools may show a different total because they count every small rise.

How many climbs does the SBT GRVL Blue have?

25 climbs of at least 300 m with 20 m of elevation change and a 2% average grade, plus shorter rollers. Together the listed climbs gain 4,114 ft.

What is the hardest climb in the SBT GRVL Blue?

Climb 18, starting at 33.4 mi: 0.59 mi gaining 266 ft at an average 8.5%. Its FIETS score is 0.7.

What is the longest climb in the SBT GRVL Blue?

Climb 2, 3.45 mi from 7.3 mi, averaging 2.4%.

How steep does the SBT GRVL Blue get?

The steepest 100 m on a listed climb averages 17.1%. Grades are measured over 100 m, so short ramps can be steeper.

Where does this course data come from?

From the course SBT GRVL publishes on its official site (https://sbtgrvl.com/the-race), retrieved 2026-10-12. Organizers change courses, so check their site before the event.

Source and method

Course: Blue Course | SBT GRVL p/b Wahoo 2027, published by SBT GRVL. Retrieved 2026-10-12. RideMorrow is not affiliated with the event. Organizers change courses, so check the official site before the event.

Elevation comes from the route file, resampled every 10 m and smoothed. Climbs and descents need at least 300 m of length, 20 m of elevation change and a 2% average grade. Grades are measured over 100 m. Climbs are ranked by FIETS score: height² ÷ (length × 10), both in metres, without the index's high-altitude bonus. A score of 1 is a solid climb; 5 and above is a mountain pass. Weather, surface conditions, traffic and closures are not included.

All courses →

Gravel · Steamboat Springs, ColoradoSBT GRVL Red53 mi · 3,849 ft · 15 climbs Gravel · Steamboat Springs, ColoradoSBT GRVL Black108 mi · 7,605 ft · 30 climbs Gravel · Lyons, ColoradoOld Man Winter Rally 4041 mi · 1,505 ft · 4 climbs

Racing something that isn't here?

Drop any GPX, FIT or TCX file into the free analyzer and get the same breakdown in seconds. No account needed.

Analyze your own route