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Hartman Rocks

Mountain bike trail conditions · Gunnison, CO 38.498° N  106.958° W   8,098 FT Verified

PRIME: Rideable now

Thu 24 Conditions turn Caution.

Recent rain
0.1″ of rain, 3d ago
Today
67°Fpartly cloudy
  • Thu 9/10, no measurable rain, modeled conditions: PRIME
  • Fri 9/11, no measurable rain, modeled conditions: PRIME
  • Sat 9/12, no measurable rain, modeled conditions: PRIME
  • Sun 9/13, no measurable rain, modeled conditions: PRIME
  • Mon 9/14, 0.76 inches of rain, modeled conditions: PRIME then CAUTION then PRIME
  • Tue 9/15, no measurable rain, modeled conditions: PRIME
  • Wed 9/16, no measurable rain, modeled conditions: PRIME
  • Thu 9/17, 0.19 inches of rain, modeled conditions: PRIME then CAUTION then PRIME
  • Fri 9/18, no measurable rain, modeled conditions: PRIME
  • Sat 9/19, no measurable rain, modeled conditions: PRIME
  • Today, Sun 9/20, no measurable rain, modeled conditions: PRIME
  • Mon 9/21, no measurable rain, modeled conditions: PRIME
  • Tue 9/22, no measurable rain, modeled conditions: PRIME
  • Wed 9/23, no measurable rain, modeled conditions: PRIME
  • Thu 9/24, 0.44 inches of rain, modeled conditions: PRIME then CAUTION, forecast preview, beyond the free window
  • Fri 9/25, no measurable rain, modeled conditions: CAUTION, forecast preview, beyond the free window

Updated Sep 20, 2026, 13:16 UTC. Modeled hourly. Verdict last changed: Sep 14. Official closures and current trail conditions take priority.

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Is Hartman Rocks rideable today?

Yes. The live verdict is PRIME, rideable now. 0.1″ of rain, 3d ago.

CHANGED
Thu 1711pm
Dried back to PRIME.
Thu 1710pm
Rain moved in. Verdict dropped to CAUTION.
Mon 148pm
Dried back to PRIME.
Over the tracked history, Hartman Rocks has been rideable on 9 of the last 10 days, and under a caution advisory on 1. Loam also considers soil, slope, tree cover, and drying time.

Soil and terrain at Hartman Rocks

Hartman Rocks is a mountain bike trail network in Gunnison, CO. The soil is gravelly sandy and drains fast. With little tree cover, the ground gets plenty of sun and wind. The terrain averages a 0.9° slope at 8,098 ft and mainly faces WSW. Its nearly flat slopes can hold water in flat stretches. Trails here include Josies, Ring Dike and Skyline.

How these factors affect drying

SoilGravelly sandy

About 28% of this ground is rock fragments, so water runs through it faster than the soil type alone suggests. It dries quicker than plain sandy. The soil type here is classified, but the exact drying speed is modeled from that classification rather than measured directly at this spot.

CanopyOpen 0%

Little tree cover means full sun and wind, so these trails are among the fastest to rebound after rain.

TerrainHolds water

Water tends to pool and linger here rather than running off, so the surface can stay damp well after the weather clears.

FAQ

Can you ride Hartman Rocks right now?

The current estimate for Hartman Rocks is PRIME: rideable now. Rain returns in ~4 days. 0.1″ of rain, 3d ago.

Is Hartman Rocks muddy right now?

Loam currently estimates dry conditions (PRIME). Sandy soil usually drains quickly. 0.1″ of rain, 3d ago.

What is the soil and trail surface like at Hartman Rocks?

Hartman Rocks sits on gravelly sandy soil that drains fast. About 28% of this ground is rock fragments, so water runs through it faster than the soil type alone suggests. It dries quicker than plain sandy. The soil type here is classified, but the exact drying speed is modeled from that classification rather than measured directly at this spot.

How long does Hartman Rocks take to dry after rain?

Hartman Rocks usually needs only a few hours to recover after light rain. Its terrain holds water in low spots, which slows it.

Can you ride Hartman Rocks after rain?

Sandy soil drains quickly, though heavier rain can leave soft spots. Wait until the surface is firm. Check the current estimate before heading out, and turn back if your tires leave ruts.

Does Hartman Rocks get snow in winter?

Yes. At 8,098 ft, Hartman Rocks typically sees winter snow and freeze-thaw that can pause riding. Loam flags a FROZEN state when the ground is snow-covered or frozen, then clears it as things thaw and dry.

What trails are at Hartman Rocks?

Trails at Hartman Rocks include Josies, Ring Dike, Skyline, Sea of Sage and Rocky Ridge. This is a partial list. The condition estimate covers the whole network, so individual trails may differ.

What's the terrain and elevation like at Hartman Rocks?

Hartman Rocks sits at roughly 8,098 feet, faces mostly WSW, and averages a 0.9° grade with about 0% tree cover. It is exposed to afternoon sun, and the nearly flat terrain holds puddles in the flats.

When is the best time of year to ride Hartman Rocks?

Snow can limit riding at Hartman Rocks in winter, at around 8,098 feet. Spring snowmelt and fall freezes can also affect conditions. Check the current conditions before planning a ride.

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Network profile

Network profile

Soil
Gravelly sandydrains fast · modeled
Drainage
Holds waterdries slowly
Tree cover
0%Open
Elevation
8,098 ft
Average grade
0.9°
Predominant aspect
WSW-facing

Named trails

  • Josies
  • Ring Dike
  • Skyline
  • Sea of Sage
  • Rocky Ridge

This is a partial trail list. The condition estimate covers the whole network. Trail names from public agency data and © OpenStreetMap contributors.

Around Hartman Rocks