The Anton is a classic Hampshire chalk stream.

It arises just to the north of Andover and flows in a southerly direction through the villages of Upper Clatford and Goodworth Clatford before it joins the Test at Chilbolton. For much of its short length it runs through traditional water meadows.

The chalk stream ecosystem is a remarkably rich environment for plant and animal life. Exceptionally clean and clear water rises out of the chalk aquifer and is consequently rendered alkaline. The alkaline environment is favourable to plant growth and the rich growth of weed in the river and the trees and other plants on the banks support a huge variety of insect life. The rich riverine invertebrate life in turn supports healthy populations of fish.

During the spring and summer the trout feed on floating insects which hatch throughout the day, creating a wonderful opportunity for the dry-fly fisherman. The Anton is stocked at Westover with healthy brown trout reared locally at the Houghton Club. There is also a good population of wild trout and grayling.

The river bank is a great place to see wildlife, including a wealth of birdlife such as kingfishers, egrets and herons, as well as mammals such as otters, water voles and deer.

Fishing on the Anton is entirely from the bank as a moderately competent fly fisherman can reach any part of the river. Wading merely muddies the clear water and spoils the banks. Upstream dry fly is the method of choice on the Anton.