Writer and artist Margie Crisp has traveled the length of Texas' Colorado River, which rises in Dawson County, south of Lubbock, and flows 860 miles southeast across the state to its mouth on the Gulf of Mexico at Matagorda Bay. Echoing the truth of Heraclitus's ancient dictum, the river's character changes dramatically from its dusty headwaters on the High Plains to its meandering presence on the coastal prairie. The Colorado is the longest river with both its source and its mouth in Texas, and its water, from beginning to end, provides for the state's agricultural, municipal, and...

First appearing on early Spanish maps as the Rio Escondido, or hidden river, and later named Rio de las Nueces after the abundant pecan trees along its banks, the Nueces today is a stream of seeming contradictions: a river that runs above and below ground; a geographic reminder of a history both noble and egregious; and a spring-fed stream transformed into a salty, steep-sided channel.
From its fresh, clear headwaters on the Edwards Plateau, Margie Crisp and William B. Montgomery follow the river through the mesquite and prickly pear of the South Texas Plains, to the river's end in...