Stonewash en Wildwash Creek, Log flume ride at Phantasialand in Brühl, Germany.

Stonewash and Wildwash Creek were two separate log flume rides at Phantasialand, each with its own lift hill and splash finale. The attractions wound through western-themed scenery with tunnels and rock formations that created different experiences for riders.

The original ride opened in 1974 with the Western themed area as Germany's first log flume, built in-house rather than by the American firm Arrow. In 1992 it was split into two separate channels sharing one station, with Mack Rides supplying the lift technology. The flumes closed at the end of the 2011 summer season and were demolished; Chiapas opened on the same spot in 2014.

The queue line ran over a water-covered surface on wooden posts, and planted areas greened the higher sections of the track. Artificial rock masses hid the lift support structures and formed the tunnels. The two rides shared one station and an outdoor queue area from 1992, and from 1996 parts of the channels ran through the landscape of the Colorado Adventure mine train, so boat passengers could watch that ride's track and theming.

The rides were located in separate western-themed areas of the park and were easy to find from the main pathways. Both attractions finished with a water splash, so visitors should store belongings securely before boarding.

After closure, the boats and ride components were sold on eBay with proceeds donated to social causes. This unusual approach gave the attraction a meaningful second life beyond the park.