Classified as an Urban Forest, Sam Houston National Forest is located only 30 miles from the city of the same name - Houston, Texas. The forest contains 162,984 acres of southeast Texas"pineywoods." The forest is a popular destination for city-folk and out-of-towners alike. The forest's Lake Conroe and Double Lakes are popular destinations for swimming, paddling and fishing. The 140-mile long Lone Star Hiking Trail rambles for 27 miles through the forest.