Seminole Trade DaysOctober 29, 2016 in Texas by robl Seminole Trade Days Over 3500 vendors and over 60,000 visitors per weekend! Over 160 acres, Free Admission, $3 for parking. Open: The third Friday, Saturday & Sunday 9am – 5pm. Location: 812 SE Avenue F, Seminole, TX 79360 Phone: 432-758-0807