Traveling from Dehradun Railway Station to Gangotri via Mussoorie, here’s a suggested route along with key locations:

1. Dehradun Railway Station: Your journey starts at Dehradun Railway Station, which is located in the heart of the city.
2. Drive through Dehradun to Mussoorie: From Dehradun Railway Station, you’ll head towards Mussoorie, a popular hill station in Uttarakhand. You’ll drive through the city of Dehradun, passing by landmarks such as Clock Tower and Rajpur Road before ascending towards Mussoorie.
3. Mussoorie: You’ll reach Mussoorie, suwakholi , dhanolti route  known for its scenic beauty and colonial charm. Take some time to explore Mussoorie’s suwakholi mountain range
4. Drive from Mussoorie to Gangotri: After exploring Mussoorie, you’ll continue your journey towards Gangotri. The route from Mussoorie to Gangotri takes you through picturesque mountain roads, offering breathtaking views of the Himalayas and the surrounding valleys.
5. Uttarkashi: En route to Gangotri, you’ll pass through the town of Uttarkashi, which serves as a major stopover for travelers heading to Gangotri. Uttarkashi is known for its temples, including the Vishwanath Temple and Shakti Temple.
6. Gangotri: Finally, you’ll arrive at Gangotri, the holy town nestled in the Garhwal Himalayas. Gangotri is famous for its temple dedicated to Goddess Ganga and serves as the base camp for the Gaumukh Trek. You’ll check into your hotel in Gangotri for an overnight stay.

Please note that the journey from Dehradun to Gangotri via Mussoorie is approximately 270 kilometers and takes around 9//10 hours by road, depending on road conditions and traffic. It’s advisable to start early in the day to ensure you reach Gangotri before nightfall. Additionally, make sure to check weather conditions and road closures before embarking on your journey, especially during the monsoon and winter seasons.

Day 2 of the Gaumukh Trek, you’ll be trekking from Gangotri to Chirbasa, covering a distance of approximately 9 kilometers. Here’s a detailed itinerary of the trekking route and what you can expect along the way:

1. Starting Point: Gangotri (Altitude: Approximately 10,055 feet):
   • Your trek begins from Gangotri, a sacred town in the Uttarkashi district of Uttarakhand, which serves as the gateway to the Gaumukh Trek.
   • Gangotri is known for its revered Gangotri Temple, dedicated to Goddess Ganga, and its stunning views of the surrounding Himalayan peaks.
2. Trekking Route:
   • The trail from Gangotri to Chirbasa follows the banks of the Bhagirathi River, offering picturesque views of the river and the surrounding mountains.
   • The trek starts with a gradual ascent through forests of pine and deodar trees, with occasional steep sections.
   • As you gain altitude, you’ll pass through scenic meadows and rocky terrain, with views of the snow-capped peaks in the distance.
   • Along the way, you may encounter small streams, waterfalls, and wildlife such as Himalayan birds and mountain goats.
3. View Check Post:
   • About halfway through the trek, you’ll come across a view check post where trekkers are required to register their details with the forest department.
   • The view check post also serves as a resting point where you can take a break, enjoy the scenery, and refuel with snacks and water.
4. Chirbasa (Altitude: Approximately 11,761 feet):
   • Chirbasa is the campsite where you’ll be spending the night.
   • The name “Chirbasa” translates to “birch forest,” and the campsite is surrounded by birch trees and alpine meadows.
   • Chirbasa offers stunning views of the Bhagirathi peaks and is an excellent spot for stargazing on clear nights.
5. Trek Level:
   • The trek from Gangotri to Chirbasa is considered to be of moderate difficulty level.
   • While the distance is not too long, the altitude gain and uneven terrain can make it challenging for some trekkers.
   • It’s essential to pace yourself, stay hydrated, and take breaks as needed to acclimatize to the altitude.

Day 3 of the Gaumukh Trek, you’ll be trekking from Chirbasa to Bhojbasa, covering a distance of approximately 5 kilometers. Here’s a detailed itinerary of the trekking route and what you can expect along the way:

1. Starting Point: Chirbasa (Altitude: Approximately 11,761 feet):
   • Your trek begins from Chirbasa, the campsite where you spent the previous night.
   • Chirbasa is known for its scenic beauty, with views of the surrounding Himalayan peaks and alpine meadows.
2. Trekking Route:
   • The trail from Chirbasa to Bhojbasa continues along the banks of the Bhagirathi River, gradually gaining altitude.
   • The trek offers stunning views of the Bhagirathi peaks and the surrounding glaciers as you ascend higher into the Himalayas.
   • The terrain consists of rocky paths, moraines, and occasional streams, with sparse vegetation at higher altitudes.
3. Distance and Duration:
   • The trek from Chirbasa to Bhojbasa is relatively short, covering a distance of approximately 5 kilometers.
   • It typically takes around 3 hours to complete the trek, depending on the pace of the trekking group and trail conditions.
4. Bhojbasa (Altitude: Approximately 12,761 feet):
   • Bhojbasa is the campsite where you’ll be spending the night.
   • The campsite is located in a picturesque setting, surrounded by alpine meadows and with panoramic views of the Bhagirathi peaks.
   • Bhojbasa serves as a midway point on the Gaumukh Trek and offers a peaceful atmosphere for trekkers to rest and acclimatize before continuing their journey.
5. View and Trek Level:
   • The trek from Chirbasa to Bhojbasa is considered to be of moderate difficulty level.
   • While the distance is relatively short, the altitude gain and terrain can make it challenging for some trekkers.
   • However, the trek offers breathtaking views of the Himalayan landscape, making it a rewarding experience for those who undertake it.

Trekking from Bhojbasa to Gaumukh Glacier is one of the highlights of the Gaumukh Trek, offering trekkers the chance to witness the source of the sacred River Ganga. Here’s a detailed itinerary of the trekking route and what you can expect along the way:

1. Starting Point: Bhojbasa (Altitude: Approximately 12,761 feet):
   • Your trek begins from Bhojbasa, the campsite where you spent the previous night.
   • Bhojbasa offers panoramic views of the surrounding Himalayan peaks and serves as a midway point on the Gaumukh Trek.
2. Trekking Route:
   • The trail from Bhojbasa to Gaumukh follows a well-defined path along the banks of the Bhagirathi River.
   • The trek involves ascending gradually through rocky terrain and glacial moraines as you approach the Gaumukh Glacier.
   • Along the way, you’ll pass through alpine meadows and may encounter wildlife such as Himalayan birds and mountain goats.
   • The total distance from Bhojbasa to Gaumukh is approximately 4 kilometers, and it typically takes around 2 hours to reach Gaumukh, depending on the pace of the trekking group and trail conditions.
3. Gaumukh Glacier (Altitude: Approximately 13,200 feet):
   • Gaumukh, also known as Gomukh, is the terminus of the Gangotri Glacier and the source of the River Ganga.
   • The name “Gaumukh” translates to “cow’s mouth” in Hindi, as the shape of the glacier’s terminus resembles the mouth of a cow.
   • Gaumukh is a sacred site for Hindus and holds immense religious significance, attracting pilgrims and trekkers from around the world.
   • The glacier itself is a vast expanse of ice and snow, with stunning views of the surrounding Himalayan peaks.
4. Exploration and Return:
   • Upon reaching Gaumukh, you’ll have time to explore the area, take photographs, and soak in the breathtaking scenery.
   • After exploring Gaumukh and soaking in its beauty, you’ll trek back to Bhojbasa, retracing your steps along the same trail.
5. View and Trek Level:
   • The trek from Bhojbasa to Gaumukh is considered to be of moderate level.
   • While the distance is relatively short, the altitude gain and terrain can make it challenging for some trekkers.
   • However, the trek offers breathtaking views of the Bhagirathi peaks, the glacier, and the surrounding Himalayan landscape, making it a rewarding experience for those who undertake it.

Trekking from Bhojbasa camp to Gangotri marks the final leg of the Gaumukh Trek, offering trekkers a chance to reflect on their journey through the stunning Himalayan landscape. Here’s a detailed itinerary of the trekking route and what you can expect along the way:

1. Starting Point: Bhojbasa Camp (Altitude: Approximately 12,761 feet):
   • Your trek begins from the campsite at Bhojbasa, where you spent the previous night.
   • Bhojbasa offers panoramic views of the surrounding mountains and serves as a tranquil resting place for trekkers.
2. Trekking Route:
   • The trail from Bhojbasa to Gangotri retraces your steps along the same route you took on your way to Gaumukh Glacier.
   • You’ll descend gradually through rocky terrain and glacial moraines, following the path along the banks of the Bhagirathi River.
   • The trek involves navigating through alpine meadows and forests of pine and deodar trees as you make your way back towards Gangotri.
   • The total distance from Bhojbasa to Gangotri is approximately 14 kilometers, and it typically takes around 6 to 7 hours to complete the trek, depending on the pace of the trekking group and trail conditions.
3. Gangotri (Altitude: Approximately 10,145 feet):
   • Upon reaching Gangotri, you’ll be greeted by the familiar sights of the sacred town nestled in the Garhwal Himalayas.
   • Gangotri is known for its revered Gangotri Temple, dedicated to Goddess Ganga, and serves as the starting point of the Gaumukh Trek.
   • After completing the trek, you’ll check into your hotel in Gangotri for an overnight stay, where you can rest and relax after your journey.
4. View and Trek Level:
   • The trek from Bhojbasa to Gangotri involves a significant descent in altitude, which can be taxing on the knees and joints.
   • While the distance is longer than previous days, the descent makes it slightly easier in terms of physical exertion.
   • However, trekking downhill can be modarate  for some trekkers, so it’s essential to pace yourself and take breaks as needed.

departing from Gangotri and heading back to Dehradun, here’s an approximate itinerary for your return journey:

1. Morning in Gangotri:
   • Start your day early in Gangotri and have breakfast at your hotel or a local eatery.
   • Take some time to explore Gangotri and visit the Gangotri Temple if you haven’t already done so.
   • Pack your belongings and check out from your hotel, ensuring you have everything you need for the journey back to Dehradun.
2. Departure from Gangotri:
   • Leave Gangotri by road early in the morning to allow ample time for the journey back to Dehradun.
   • The drive from Gangotri to Dehradun takes approximately 10-12 hours, covering a distance of around 270 kilometers.
   • The road from Gangotri to Dehradun passes through picturesque landscapes, including mountain valleys, rivers, and forests.
3. Stops along the Way:
   • Plan for occasional rest stops and meal breaks along the route to stretch your legs and refuel.
   • You may consider stopping in Uttarkashi or other towns along the way for lunch or snacks.
4. Arrival in Dehradun:
   • Depending on road conditions and traffic, you should aim to reach Dehradun between 7:00 pm to 8:00 pm in the evening.
   • Once you arrive in Dehradun, check into your accommodation for the night and relax after a long day of travel.
   • You can explore Dehradun in the evening, enjoy a delicious dinner at a local restaurant, or simply unwind and rest after your journey.