There is a road in western China that photographers call the “Mars Highway” — a dead-straight line across rust-red deserts and salt flats where the horizon shimmers and there is often nothing alive in view for an hour at a time. That road is G315, and the stretch that runs through the southern edge of Xinjiang, from Ruoqiang toward Qiemo and on to the Qinghai border, is one of the most surreal drives in the region.
This is not a road for everyone. It is long, empty, and unforgiving of poor preparation. But for travelers who want to feel the true scale of the Tarim Basin’s rim, it is unforgettable.
What G315 is here
G315 is a national trunk route running from Xining (Qinghai) across the Qinghai–Tibet plateau and into Xinjiang, eventually reaching Ruoqiang and continuing west. The Xinjiang portion we care about threads the southern foot of the Taklamakan Desert: Ruoqiang (Qarkilik) → Qiemo (Cherchen) → Minfeng, and westward toward Hotan. The famous “Mars” imagery — red-earth yardangs and mirror-flat salt pans — clusters around the Ruoqiang–Qiemo segment and the nearby Qarhan salt lake area just over the provincial line.
The surface is paved and generally good, but the character is remote. Towns are hundreds of kilometers apart. Cell signal is unreliable. This is a world away from the busy Duku or the manicured Sayram expressway.
The drive, Ruoqiang eastward
1. Ruoqiang (Qarkilik). The gateway. An oasis town on the southern Silk Road, with fuel, food, and the last easy services before the emptiness. Top off here without exception.
2. The red desert. East of Ruoqiang the land turns the color of rust. Yardang formations — wind-carved earth ridges — line stretches of the road. This is the “Mars” section people photograph, especially near sunrise and sunset when the red deepens.
3. Salt flats and mirrors. Further east, near the provincial boundary, vast white salt pans appear. On still days they reflect the sky so perfectly the road seems to float. These are the shots that made G315 famous.
4. Qiemo (Cherchen) and beyond. A green oasis reappears at Qiemo, then the desert closes in again toward Minfeng and the Hotan direction.
Why it’s for prepared travelers only
- Distance between services. Hundreds of kilometers can separate fuel and food. Never set out below half a tank; carry extra water (several liters per person) and some food.
- Signal. Expect long dead zones. Download offline maps and tell someone your plan. A satellite communicator is not crazy out here.
- Heat and cold. Summer daytime is brutal; winter nights plunge below freezing. The desert does not compromise.
- Breakdowns. A stranded car in this emptiness is genuinely dangerous. Have a spare tire in good condition, basic tools, and the sense to turn back if the vehicle feels wrong.
- Checkpoints. Routine ID/passport checks at towns and junctions. Foreign travelers carry their temporary driving permit and passport. Some segments near the provincial border can involve extra scrutiny — our Xinjiang road trip safety guide covers the mindset.
How it compares to the Taklamakan crossing
The classic Taklamakan Desert Highway cuts straight north–south through the desert’s heart. G315 instead follows the southern rim — longer to cross the basin but passing real oasis towns and the “Mars” scenery the central crossing lacks. A full Southern Xinjiang Tarim loop can combine both: cross the desert on the central highway, then run the rim on G315 to complete the circuit.
Fuel, tolls, and logistics
- Fuel: Ruoqiang and Qiemo are your anchors. Plan every leg around them.
- Tolls: G315 is largely a free national road in this stretch (unlike the G30 expressways); budget for the occasional managed section but not heavy tolls.
- Accommodation: basic hotels in the oasis towns; book ahead in peak season. Don’t plan to “freecamp” randomly — the desert is exposed and the cold is real.
- Best season: spring (April–May) and autumn (September–October) avoid the worst heat. Summer is possible but punishing in the daytime.
FAQ
Is G315 paved? Yes, paved and generally in good condition through Xinjiang.
Can a normal car do it? Yes, but only with full preparation — fuel, water, offline maps, spare tire. This is a logistics challenge, not a surface challenge.
Do I need a border permit? Not for the highway itself, but the Qinghai-border area and some junctions can involve extra checks. Carry ID/passport.
Is it safe to drive alone? Many do, but never skimp on water, fuel, and communication. A partner vehicle is wise in the emptiest segments.
When’s the best light for photos? Sunrise and sunset on the red yardangs and salt flats — midday washes the color out.
Final word
G315 through southern Xinjiang is the road you drive to understand how big this place is. It rewards preparation with a kind of silence and space you won’t find on the famous passes. Go fueled, go informed, and let the red desert do the rest.
Written by Karl Huang, a Xinjiang-based travel writer. Fuel, weather, and checkpoint conditions in remote desert areas change — confirm locally before you set out.