Caddo Lake is the largest natural lake in the south and the only natural lake in Texas. It's home to one of the largest cypress forests in the world. Half of the 26,810 acre lake in the Texas and half is in Louisiana.
In the early 1900's, Caddo Lake became the site of the first over-water oil well in the world.
The US Army had 15 barracks and a mess hall that were converted into the 9 log cabins and group recreation hall that are currently used in the park. There is a CCC pavilion, remnants of original picnic sites, and a latrine along the park trails.
The trail where you'll find the cache used to be a road during the 1930's and 40's which people drove to picnic at the CCC pavilion. When the park was redeveloped in the late 1960's, the road was closed to vehicles but the pavilion remained. It can only be seen by people who walk the trail.
NOTE: There is a $3 entrance fee per person 13 and older (12 and under get in free). There is no fee if you have a current Texas State Park pass.