USARunningTrail100K · 100 km / 62.1 mi100mi · 160.9 km / 100.0 mi25K · 25 km / 15.5 mi50K · 50 km / 31.1 mi5mi · 8 km / 5.0 mi

Dinosaur Valley Endurance Run

Glen Rose, Texas, Dinosaur Valley State Park, rear access from County Road 1007 via Hereford Street · USA

Next race day

Sat, 21 Nov 2026

5 distances · see start times below

Race website Official entry Calendar

About Dinosaur Valley Endurance Run

Dinosaur Valley Endurance Run is a running event in Glen Rose, Texas, Dinosaur Valley State Park, rear access from County Road 1007 via Hereford Street, United States. Recorded disciplines include 100K, 100mi, 25K, 50K, 5mi. The listed surface is trail. The listed organiser is The Active Joe. The next listed date is 21 November 2026. Check the organiser's information for entry and race-day arrangements.

Dates, starts & entry

Times are local to the race. Select the entry route for your distance.

5mi · 8 km / 5.0 mi
Sat, 21 Nov 2026
Starts 08:00 CST
Entries open
Official entry
Separate Triassic morning race at 08:00 and Jurassic night race at 20:00 are available. Enter the race you intend to run; both same-day options share this distance listing. Use the organiser’s rear park access and parking coordinates, not the main entrance. Allow for the 0.75-mile walk from parking to the race village.
Edition source
25K · 25 km / 15.5 mi
Sat, 21 Nov 2026
Starts 08:00 CST
Entries open
Official entry
Triassic 25K. Use the organiser’s rear park access and parking coordinates, not the main entrance. Allow for the 0.75-mile walk from parking to the race village.
Edition source
50K · 50 km / 31.1 mi
Sat, 21 Nov 2026
Starts 08:00 CST
Entries open
Official entry
Saturday-only start. Use the organiser’s rear park access and parking coordinates, not the main entrance. Allow for the 0.75-mile walk from parking to the race village.
Edition source
100K · 100 km / 62.1 mi
Sat, 21 Nov 2026
Starts 07:00 CST
Entries open
Official entry
Saturday-only start. Use the organiser’s rear park access and parking coordinates, not the main entrance. Allow for the 0.75-mile walk from parking to the race village.
Edition source
100mi · 160.9 km / 100.0 mi
Sat, 21 Nov 2026
Starts 07:00 CST
Entries open
Official entry
Saturday-only start. Use the organiser’s rear park access and parking coordinates, not the main entrance. Allow for the 0.75-mile walk from parking to the race village.
Edition source
5mi · 8 km / 5.0 mi
Sun, 22 Nov 2026
Starts 08:00 CST
Entries open
Official entry
Cretaceous 5 Mile. Use the organiser’s rear park access and parking coordinates, not the main entrance. Allow for the 0.75-mile walk from parking to the race village.
Edition source
25K · 25 km / 15.5 mi
Sun, 22 Nov 2026
Starts 08:00 CST
Entries open
Official entry
Cretaceous 25K. Use the organiser’s rear park access and parking coordinates, not the main entrance. Allow for the 0.75-mile walk from parking to the race village.
Edition source