Permanent settlers arrived in 1845, and the county was organized in 1856 with the City of Llano as its county seat. Llano Third Saturday in August Llano Heritage Day, Llano Third Saturday in October Featured Attractions Lake Buchanan Lake Buchanan offers fishing, camping, swimming and picnicking. Several parks are available, Llano County Park, with a free boat ramp, Cedar Point, a bird watchers paradise and LCRA's Black Rock Park. The American bald eagles nest on the Llano County side of the upper Colorado River, and the official statewide eagle count is held here each January. Lake Buchanan is the largest of the Colorado River's Highland Lakes.
Some parks charge fees.
Buchanan Dam Buchanan Dam was the longest multiple-arch dam in the United States when the Lower Colorado River Authority completed it in 1937. More than 2 miles long and 176 feet high, it creates a lake covering 36 square miles, holding more than 323 billion gallons of water. The powerhouse on the downstream side of the dam contains three water-powered generating units. Panoramas of Lake Buchanan and upper Inks Lake can be seen from the dam's walkway. The Buchanan Dam Visitors Center and LCRA Museum offers a display of photos taken during the actual construction of the dam in the 1930s and a video documenting the dam's history and construction.