Welcome to the Angelina National Forest, one of four National Forests in Texas. Located in the heart of east Texas, the 153,179-acre Angelina National Forest is located in Angelina, Nacogdoches, San Augustine and Jasper counties. The forest lies in the Neches River Basin and on the north and south shores of Sam Rayburn Reservoir, a 114,500-acre lake on the Angelina River formed by the construction of Sam Rayburn Dam in the early 1960's. The Angelina National Forest lies in the upper Gulf Coastal general plain province and the terrain is gently rolling. Longleaf pine is the predominant cover type in the southern portion, while loblolly and shortleaf pine are the dominant types in the rest of the forest. Summers in the Angelina National Forest are hot and humid and winters generally are short and mild. Average mid-summer temperatures in the forest range from the mid-80's to the mid-90's, with an average mid-winter temperature a mild 52 degrees. Rarely do temperatures in the forest drop to less than 10 degrees or rise above 110 degrees. The average annual rainfall is 46 inches.