ALT From Smith Mountain Lake in the Blue Ridge Mountains to High Bridge State Trail Park over the Appomattox River and the naturally carved 850-foot-long tunnel in Natural Tunnel State Park, Virginia State Parks boast some of the most stunning sights in the nation. But the subtleties of the colors that make up that natural beauty are lost on nearly 300 million people around the world who are colorblind. Now the park system is the first in the country to install specially adapted viewfinders at all 43 of its sites to ensure its guests can take in the range of hues.