Tuesday Dec 13 2011 comments A Walk Through Time at Coloma By: Telegraph photography by Ken Larson -A +A The river runs through the Gold Marshall Discovery Park in Coloma. A small trail allows families to meander the grounds. Remnants of the area?s rich mining history are still evident. A vintage vehicle makes a stop at the Coloma Post Office. Pioneer construction techniques are on display at the park. A wagon wheel is one of the many historical items at the park.