More than 300, 000 wetlands plants and hundreds of thousands of flowers and bulbs in varied parklands are also to be included in wooded hills, meadows, ponds, lawns, gardens and wet woodlands.

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From Bristol, a state-designated music trail known as the Crooked Road zigzags through the wooded hillsides and meadows of South Virginia, past white picket fences and trout-filled creeks along the North Carolina border.

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In Miesian style, Mr. Van Valkenburgh and MVVA principal Matthew Urbanski choreographed the surrounding countryside to look informal and timeless, alternating wooded areas with open meadows.

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Since then, flora has sprung up along the embankments, ballast, bridges and walls, creating meadows, wasteland and wooded areas in which a vast range of animals live: there are 220 species of plants and animals, including bees, butterflies, toads, hedgehogs, French oaks and sycamores, and 21 bird species, including the endangered spotted fly catcher.

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