Tapi district was formed out of Surat district, and Vyara is its headquarters. The Tapi river flows through it, and the Ukai Dam on the river holds the Vallabh Sagar reservoir, which serves irrigation and a power station. The talukas are Vyara, Valod, Uchhal, Nizar, Songadh, Kukarmunda and Dolvan. Surat lies to the west, Narmada to the north, The Dangs to the south-east, and Nandurbar district of Maharashtra to the east. A national highway runs from Surat through Vyara toward Maharashtra, and the road through Songadh goes up toward Saputara and Pimpalgaon Baswant. So most freight leaves the district toward Surat or toward the Maharashtra side.
The plain talukas of Vyara and Valod are cane and paddy country. Cooperative sugar mills work in the crushing season, and farm produce, including banana and vegetables, goes by pickup and tempo to Surat and to local markets. Pump sets, threshers and tractor trolleys are the working machines of every village. They are valuable, they are moved often and they are left standing in fields. The reservoir adds fishing and boat trade at Ukai, and visitors come to the dam and to Songadh fort. The district also has a town trade in building material, grain and cloth.
Songadh, Uchhal, Kukarmunda and Dolvan are greener and hillier talukas, with forest cover and the Purna wildlife sanctuary shared with The Dangs and with Nandurbar. Farming, bamboo, timber and forest produce move out by truck from these villages, and towns lie far apart. In such country a battery tracker is easier than anything with wires, because it can ride on a trolley today and a timber trailer tomorrow. The same BT900 works for a farmer, a pump contractor and a building trader, and it can be shifted between machines in a minute.