Mesquite, an exhibit of photography and art representing mesquite trees in a range of media, closes Sunday, July 22. Summer hours are 8 a.m. to 3 p.m., daily, through Friday, Aug. 31; $8, $6 senior, $5 active military, $4 student with valid ID, $2 ages 5 through 12, free member or child younger than 5, includes admission to the park. Visit tohonochulpark.org for more information.