Louisiana - The Tammany Trace is a 31 mile (50k) paved trail running from Covington, LA to Slidell, LA on the north shore of Lake Pontchartrain that is a great option for a first time solo ultrarunning destination.
All tagged Extreme Weather
Ultrarunning days on Mount Elbert and Mount Massive - Leadville, Colorado
Colorado - Extreme elevation runs up to Mount Elbert and Mount Massive near Leadville, Colorado
An ultramarathon on the Black Canyon Recreation Trail - Phoenix, Arizona
Arizona - 100k of running along the Black Canyon Recreation Trail north of Phoenix
An ultrarunning adventure on the Wicklow Way - Dublin, Ireland
Ireland - 50k along the Wicklow Way plus another 20k to reach the snowy top of Djouce Mountain
A Rim2Rim2Rim ultrarun - Grand Canyon, Arizona
Arizona - From the South Rim to the North Rim and back, solo. Also known as the Rim2Rim2Rim.