Home All TrailsIhtiman Sredna Gora to Sofia Drive

Hard

On-Road

🇧🇬 Bulgaria

Recorded Trail

This track was recorded on the ground by an actual expedition vehicle.

ID: BG-23-02

Ihtiman Sredna Gora to Sofia Drive

Added on 29 Sep 2026

Logged by @trailxon3 October 2015

Mountain drive from Gorna Vasilitsa over the Sredna Gora hills via Poibrene into Sofia.

Trail Map

Initialising Map Engine...

Trail Profile

General Instructions

Winding mountain roads; winter tyres required in snow.

Mission Logs89 waypoints

Distance	Direction & Instruction	Gradient	Gear Gearing suggestions are defensive and based on terrain profile. Always assess real-time conditions and the path ahead personally.
0.0 km	N Start Point	16%	4H
0.1 km	NW Steep Ascent	24%	4H
0.4 km	N Steep Ascent	31%	4L
0.9 km	N Steep Ascent	23%	4H
1.0 km	N Steep Ascent	13%	2H

Note: Gear suggestions are based on terrain gradient and are for reference only.

Weather check

At Start

1035m

Sampling Micro-Climate...

42.3841, 23.9245

Slide to preview conditions across the entire route • Point: 42.3841, 23.9245 @ 1035m

Quick Stats

Distance

124.29 km

Type

On-Road Sector

Elevation Range

376m - 1119m

Max Elevation

1119 m

Max Gradient

31.3%

45%

Highlights

Sredna Gora hills
Borovets nearby
Sofia

Field Radio Protocol

VHF-UHF Communication

Signal Verified

Emergency Simplex

146.520MHz

Team Coordination

446.006MHz

Scout Primary

146.400MHz

Propagation Telemetry

Ridge Line

92%

Gorge Floor

18%

Sector Relay: Sector Alpha Relay• 12-18 KM Range

Regulatory Compliance

VHF/UHF frequencies are for monitoring and emergency coordination only. Transmitting on these bands may require an Amateur Radio License or regional government permits. Check local telecommunications laws before operation.

Technical Analysis

Total Ascent

+1429 m

Total Descent

-1868 m

Ruggedness Index

Terrain Roughness Index

Vertical displacement per km. Typical range: 0 (Smooth) to 100+ (Extreme Mountain).

0 (Smooth)50 (Steep)100+ (Extreme)

26.5

Tortuosity Index

Route Curviness Index

Ratio of actual path to straight line. Typical range: 1.0 (Direct) to 3.0+ (Switchbacks).

1.0 (Direct)2.0 (Winding)3.0+ (Serpentine)

2.1

Gradient Distribution

Flat (0-3%)52%

Moderate (3-8%)39%

Steep (>8%)9%

Surface & Hydrology

Paved30%

Unpaved70%

Surface Spectrum Analysis

Asphalt

30%

Gravel

49%

Dirt Track

21%

Water Crossings

Includes only technical water fords where the vehicle actively enters a stream or riverbed. Permanent bridges are excluded from this count.

Difficulty Analysis

SCORE: 55

Difficulty is determined by a technical multi-vector analysis of elevation profile, surface quality, and topographic intensity.

Resulting CategoryHard

Bounding Box (WGS84)

MIN LAT: 42.384064

MAX LAT: 42.684399

MIN LON: 23.324231

MAX LON: 24.081079

Point Spacing: 23.2 m • Engine: TrailX Precision GPX ANALYTICS v1.0.0

Reviews & Discussion0

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