Runners on the Air Line Trail near Hebron, Connecticut
They're off - a surprise snow didn't deter the Tunnel Hill 50mile/100mile/Marathon Event runners.
Runners from Cascade Christian High School on the Sarah Zigler Trail; Jacksonville, Oregon
An armadillo running across the Hugh S. Branyon Backcountry Trail in Orange Beach and Gulf State Park, Alabama
All trail users are advised to go slow and keep right approaching circular ramp on trail bridge crossing Town Lake in Austin, Texas
Bicyclists and joggers crossing a bridge on the Neal Smith Trail, Iowa
Cross country team having practice on the Junction and Breakwater Trail, Sussex County, Delaware
Janet Fish Pedestrian Bridge in Austin, Texas
Trail swings around to cross tracks at 90 degree angle; Minneapolis Cedar Lake Regional Trail
A youth runner participates in the Jim Mayer Riverswalk 10K race on a mild September afternoon.
The minimum needed for a rail crossing: trail surface and signs; angled crossing is not optimum; Chattanooga, Tennessee
Local volunteers feed runners and volunteers on the 50/100 mile run on the Tunnel Hill State Trail, Illinois
Ghost Town Trail, Dilltown, Pennsylvania
Boardwalk over the river