The Wimmera landscape is highly modified and is dominated by agriculture land use (84%). Today approximately a quarter of all residents, rely directly upon agriculture for their income. Most of the vegetation that once covered the landscape is now rare or endangered and contained to national parks, reserves, and state forests such as The Grampians and Little Desert National Parks, Black Range State Forest, Mt Arapiles–Tooan State Parks and the Pyrenees Range. Most of the Wimmera is very flat, with only the Grampians and Mount Arapiles rising above vast plains.