In July 2011, Lisa Bliss became the first woman and second person to complete the 146 mile Badwater-to-Summit course totally self-contained (without crew or resupply of any kind, abiding by the rules set forth in Marshall Ulrich's 1999 unassisted "self-contained" solo crossing). She pushed and pulled a custom-built 3-wheeled cart filled with water and gear that weighed 240 pounds at the start from Badwater to the Whitney trail head, and then continued the remaining 11 miles to the summit with a pack that she carried from the start. She reached the Mt. Whitney summit in 89 hours and 38 minutes.