Rajaji National Park, situated in the state of Uttarakhand, India, is a prominent national park known for its rich biodiversity and diverse ecosystems. Here are key details about Rajaji National Park:

*1. Geographical Location:

• Rajaji National Park is strategically located at the edge of the Shivalik Range in the state of Uttarakhand, India.
• The Shivalik Range, often called the southernmost range of the Himalayas, spans across several states in northern India, and Rajaji National Park marks the entry point into this picturesque mountainous region. 

**2. Entrance to the Shivaliks:

• As one enters Rajaji National Park, the landscape undergoes a noticeable transformation, transitioning from the plains to the foothills of the Shivaliks.
• The park serves as a natural gateway for visitors moving from the low-lying plains to the elevated and undulating terrains of the Shivalik hills. 

• The region where Rajaji National Park is situated acts as an ecotone, a transitional zone between two ecosystems – the Gangetic plains and the Himalayan foothills.
• This ecotone nature is pronounced in the park, making it a unique area where the flora and fauna of both the plains and the mountains coexist. 

**4. Biodiversity Junction:

• The park is a hotspot for biodiversity due to its location at the intersection of the plains and the hills.
• Various species from both ecosystems find refuge here, making it a crucial area for conservation and wildlife protection. 

**5. Wildlife Corridor:

• The Shivalik Range is known for its role as a wildlife corridor, facilitating the movement of animals between the Himalayan and peninsular regions.
• Rajaji National Park, with its connection to the Shivaliks, plays a vital role in maintaining this wildlife corridor, allowing species to traverse between different landscapes. 

**6. Scenic Transition:

• The park offers a visually striking transition from the flatlands to the foothills, providing visitors with breathtaking views as they enter the Shivaliks.
• The topography, vegetation and climate change noticeably, creating a captivating experience for those journeying through the park. 

**7. Tourist Access Point:

• For tourists and nature enthusiasts coming from the plains, Rajaji National Park becomes the primary access point to explore the natural wonders of the Shivalik Range. 
• The park acts as a gateway not just geographically but also in terms of introducing visitors to the diverse landscapes and ecosystems of the Shivaliks.

In essence, Rajaji National Park is rightfully called the "Gateway To The Shivaliks" due to its unique geographical position, serving as a transition zone and entrance into the mesmerizing Shivalik Range.