Back in May, we told you about Jane Tomlinson's plan to pedal across America, beginning in San Francisco and ending in New York, in a fundraising campaign for cancer charity. She planned to begin the epic ride, named Jane's Ride Across America, as soon as she finished chemotherapy for advanced metastatic breast cancer -- a terminal cancer diagnosis she received almost six years ago and was told at that time she only had six months to live. Her plan is to arrive in New York on August 31st, which will mark the six year anniversary of her cancer survivorship.

Still in back and hip pain from the chemotherapy she just finished two weeks ago, Tomlinson, 42, began her ride yesterday, leaving San Francisco. During her 4,200-mile journey she will endure temperatures of 100F and altitudes of more than 11,000 ft. Accompanying her on the trip are two friends - Leeds Metropolitan University lecturer Ryan Bowd, 27, of Calgary, Canada, and 40-year-old Martyn Hollingworth, of Huddersfield, West Yorkshire; her husband Mike, nine-year-old son Steven and 18 year-old daughter Rebecca. To learn more about the remarkable Tomlinson and read her ride diary, visit her website Jane's Appeal.