“South Dakota: Tough day. Tough day. We got started early, but I knew forecasters were calling for triple-digit temperatures and winds out of the south. We had hills from the get-go. My knees were barking, and no amount of ibuprofen was going to make them happy. … We were basically on Highway 83 south all day. Long rollers with wide expanses of grassland … cowboy country.”Read more at Cindi’s blogLearn more about the nonprofit group comprising cyclists who open their homes to traveling cyclists at Warm Showers.Cindi Rauch will pedal 100 miles from Girdwood to Soldotna, Alaska, today to complete her summer adventure: a 5,000-mile bike ride of 50 centuries (100-mile bicycle rides) in 50 states in 50 days.As Rauch, 60, of Brush Prairie pedaled her bike to her parents’ Orchards home Monday, she had just finished her 49th 100-mile bike ride.“It’s been the grandest kind of adventure,” she said. “Physical, mental, emotional.”Cindi’s father, Bill Rauch, who had waited at the end of the driveway for her, gave her a hug.She dismounted her bike, drank from a water bottle and hugged her grandson, Torin Rauch, whose family had traveled from Yakima to witness her feat.After catching up with family and friends gathered there, she was heading to Portland International Airport to catch a flight to Anchorage, Alaska, and the final leg of her impressive journey. She said she planned to assemble her bike when she arrived in Anchorage, then pedal her last 100 miles, or “century” as its known in the cycling world. Then, she planned to spend two days fishing before she flies home, she said.