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Harbison State Forest

Mountain bike trail conditions · South Carolina 34.095° N  81.111° W   223 FT Verified

PRIME: Rideable now

Wed 12am Conditions turn Caution.

Recent rain
0.1″ of rain, 1d ago
Today
93°Fovercast
  • Thu 9/10, no measurable rain, modeled conditions: PRIME
  • Fri 9/11, no measurable rain, modeled conditions: PRIME
  • Sat 9/12, 0.13 inches of rain, modeled conditions: PRIME then STAY OFF
  • Sun 9/13, no measurable rain, modeled conditions: STAY OFF then CAUTION then PRIME
  • Mon 9/14, no measurable rain, modeled conditions: PRIME
  • Tue 9/15, no measurable rain, modeled conditions: PRIME
  • Wed 9/16, no measurable rain, modeled conditions: PRIME
  • Thu 9/17, no measurable rain, modeled conditions: PRIME
  • Fri 9/18, 0.09 inches of rain, modeled conditions: PRIME then STAY OFF then CAUTION
  • Sat 9/19, no measurable rain, modeled conditions: CAUTION then PRIME
  • Today, Sun 9/20, no measurable rain, modeled conditions: PRIME
  • Mon 9/21, no measurable rain, modeled conditions: PRIME
  • Tue 9/22, 0.74 inches of rain, modeled conditions: PRIME then CAUTION then STAY OFF
  • Wed 9/23, 0.23 inches of rain, modeled conditions: STAY OFF
  • Thu 9/24, 0.07 inches of rain, modeled conditions: STAY OFF, forecast preview, beyond the free window
  • Fri 9/25, no measurable rain, modeled conditions: STAY OFF then CAUTION, forecast preview, beyond the free window

Updated Sep 20, 2026, 13:15 UTC. Modeled hourly. Verdict last changed: Sep 20. Official closures and current trail conditions take priority.

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Is Harbison State Forest rideable today?

Yes. The live verdict is PRIME, rideable now. 0.1″ of rain, 1d ago.

CHANGED
Sat 1910am
Dried back to PRIME.
Sat 194am
Dried back to CAUTION.
Sat 193am
Rain moved in. Verdict dropped to STAY OFF.
Over the tracked history, Harbison State Forest 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 Harbison State Forest

Harbison State Forest is a mountain bike trail network in South Carolina. The soil is clay and holds water. Heavy tree cover can slow drying after rain. The terrain averages a 2.7° slope at 223 ft and mainly faces NE. Its gentle slopes drain slowly, so low spots can stay soft after rain.

How we check ourselves

How these factors affect drying

SoilClay

Dense clay holds moisture and stays slick the longest. It needs the most drying time before it’s worth riding.

CanopyDense 90%

Heavy tree cover shades the soil and blocks wind, so these trails dry slowly and can hold morning damp even after dry days.

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 Harbison State Forest right now?

The current estimate for Harbison State Forest is PRIME: rideable now. Rain returns in ~2 days. 0.1″ of rain, 1d ago.

Is Harbison State Forest muddy right now?

Loam currently estimates dry conditions (PRIME). Clay soil can stay wet for several days. 0.1″ of rain, 1d ago.

What is the soil and trail surface like at Harbison State Forest?

Harbison State Forest sits on clay soil that holds water. Dense clay holds moisture and stays slick the longest. It needs the most drying time before it’s worth riding.

How long does Harbison State Forest take to dry after rain?

Harbison State Forest can need several days to dry after meaningful rain. Its terrain holds water in low spots, which slows it. Heavy tree cover slows drying further.

Can you ride Harbison State Forest after rain?

Clay soil needs time to dry. Riding it wet can leave lasting ruts. Wait until the surface is firm. Check the current estimate before heading out, and turn back if your tires leave ruts.

Does Harbison State Forest get snow in winter?

Rarely. Harbison State Forest sits low and mild enough (around 223 ft) that snow seldom affects riding; conditions are driven by rain and drying. Loam still flags FROZEN on the rare freeze.

What's the terrain and elevation like at Harbison State Forest?

Harbison State Forest sits at roughly 223 feet, faces mostly NE, and averages a 2.7° grade with about 90% tree cover. It is slower to dry where it faces north, and the gentle terrain leaves low spots soft after storms.

When is the best time of year to ride Harbison State Forest?

Snow rarely affects Harbison State Forest. Check recent rain and allow time for the ground to dry. Its shady aspect means it needs longer after storms than sunnier networks nearby. The live verdict above reflects today.

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Network profile

Network profile

Soil
Clayholds water
Drainage
Holds waterdries slowly
Tree cover
90%Dense
Elevation
223 ft
Average grade
2.7°
Predominant aspect
NE-facing

Around Harbison State Forest

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