If that did not work, try exiting the Roku app, turning your phone's (or tablet's) Wi-Fi off and on and re-entering the app. Next, confirm your Roku device is on the same network as your phone: 1  On your phone, open Settings and check your network's IP address.2  Go to Settings Wi-Fi Your network name and write down the number next to IP Address..f that did not work, try exiting the Roku app, turning your phone's (or tablet's) Wi-Fi off and on and re-entering the app. Next, confirm your Roku device is on the same network as your phone: 1  On your phone, open Settings and check your network's IP address.
Sifto Salt Mine in Goderich, Ontario, which, at 1.5 miles (2.4 km) wide and 2 miles (3.2 km) long, is one of the largest salt mines in the world extending 7 km 2 (2.7 sq mi) . England. The  -wich towns  of Cheshire and Worcestershire.
The North Antelope Rochelle coal mine in the Powder River Basin of Wyoming, US, is currently the world's largest coal mine by reserve. The mine was estimated to contain more than 2.3 billion tonnes of recoverable coal as of December 2012. The mine is owned and operated by Peabody Energy.