The Dry Creek watershed is a tributary to the Sacramento River. Its headwaters are in western Placer County, in the foothills of the Sierra Nevada mountains. A number of smaller streams meet in Roseville, and the combined stream is called Dry Creek beginning in the confluence of Antelope Creek and Miners Ravine, Dry Creek flows first southwest through Royer Park in downtown Roseville. Then it meets Cirby Creek and continues west into unincorporated Placer County, and then southwest again toward Sacramento.
The Head waters of the Auburn Ravine begin in the Sierra Nevada Foothills near the town of Auburn and the ravine ends in the Natomas Cross Canal near the town of Verona, feeding into the Sacramento River.
Secret Ravine is a perennial tributary of Miners Ravine which shortly thereafter runs into Dry Creek located in Placer County. Its course lies within the cities of Rocklin, Loomis and Roseville, as well as unincorporated parts of Placer County. It also passes through the campus of Sierra College. It was the site of placer mining operations during the California Gold Rush, and areas of tailings remain to this day.