The San Bernard Oak is registered by the Texas Forest Service as the largest Live Oak (Quercus virginiana var. virginiana) in Texas. This registration is based on the following measurements:
Circumference: 386 inches
Height: 67 feet
Crown: 100 feet
Source: "Texas Big Tree Registry: Champion List for Species Native or Naturalized to Texas." Texas Forest Service.
The San Bernard Oak is accessible from County Highway 306 via an unpaved driveway and a 0.6-mile hiking trail. Parking is available at the north end of the driveway.
The hiking trail is relatively level, with several stretches of boardwalk over seasonal wetlands. Hikers may observe a rich diversity of plants and birds, and evidence of many mammals.
See the map below for location. Scroll down for other maps and documents.