at the same time , snow , ice and several entire glaciers on the volcano melted Change , forming Creating a series of large lahars ( volcanic mudslides ) that reached Arriving as far as the columbia river , nearly to the southwest .

India took control Control of the Siachen Glacier and its tributary glaciers , as well as all the main passes and heights of the Saltoro Ridge immediately west of the glacier , including Sia La , Bilafond La , and Gyong La .