There is NO STARTBOX at the start location. 

Sanderson, TX
Terrell County
Cactus Capital of Texas
8th least populous county in TX, 37th least populous in US

Elevation: 2,785 feet AMSL
Rating: 1A
GPS: 30.144458, -102.395749

This event is one of 16 in the Charley Pride Challenge, a 2000-mile road trip from San Antonio to Phoenix and back (or from Phoenix to San Antonio and back!).

Your walk starts at Bicentennial Park; 112 Mansfield St; Sanderson, TX. Park anywhere by the fence, but the restrooms are to the right of the pool.