![](http://www.alamy.com/thumbs/6/E37E999E-A245-4E58-9FCB-303F3ADEE3F2/2C648DX.jpg)
A sign post prohibiting biking on a sensitive trail prone to erosion in the East Bay.
Size: 6624px × 4421px
Location: California, USA
Photo credit: © Anton Sorokin / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 0, america, area, bay, bikes, biking, ca, california, control, dirt, dry, east, erosion, francisco, grass, hiking, hot, july, nature, north, outdoors, people, post, prohibited, road, san, sign, signage, sunny, trail, trails, trees