This track was identified and mapped via high-resolution satellite imagery.
Siliguri to Gangtok through the Teesta Valley
National Highway 10 from the plains at Siliguri through the Sevoke gorge and up the Teesta River valley via Rambi Bazar and Melli, crossing into Sikkim at Rangpo and climbing via Singtam and Ranipool to Gangtok. The road follows the river for much of its length.
Trail Map
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Trail Profile
General Instructions
About 115-120 km; allow 4-5 hours, as average speeds on the hill section are around 30 km/h. Landslides frequently close NH10 in the monsoon (June-September); check status before setting out.
Weather check
Sampling Micro-Climate...
26.7100, 88.4300
Slide to preview conditions across the entire route • Point: 26.7100, 88.4300 @ 126m
Quick Stats
Highlights
- See the Coronation Bridge at Sevoke
- Watch rafters on the Teesta
- Stop at Teesta Bazaar or Melli
- Cross into Sikkim at Rangpo
- Visit Ranka or Rumtek near Gangtok
Field Radio Protocol
VHF-UHF Communication
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
+2128 m
Total Descent
-606 m
Ruggedness Index
Terrain Roughness Index
Vertical displacement per km. Typical range: 0 (Smooth) to 100+ (Extreme Mountain).
24.2
Tortuosity Index
Route Curviness Index
Ratio of actual path to straight line. Typical range: 1.0 (Direct) to 3.0+ (Switchbacks).
1.58
Gradient Distribution
Surface & Hydrology
Surface Spectrum Analysis
Includes only technical water fords where the vehicle actively enters a stream or riverbed. Permanent bridges are excluded from this count.
Difficulty Analysis
Difficulty is determined by a technical multi-vector analysis of elevation profile, surface quality, and topographic intensity.
Bounding Box (WGS84)
Point Spacing: 24.8 m • Engine: TrailX Precision GPX ANALYTICS v1.0.0
Reviews & Discussion0
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Plan this trip
Before you go: Siliguri to Gangtok through the Teesta Valley
Best time to go
Oct–Mar
October to March suits most of the country. The southwest monsoon (June to September) floods the Western Ghats and Kerala, but it is also the main season for Ladakh and Spiti, where high passes are usually open only from June to October.
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