Deer Creek - Oso, WA - Jade Hunt (imgur.com)It’s a very residential street with private property signs prominently displayed. There is a small area to park with public access to Deer Creek near the very last house on the road.
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Preliminary Report on the Geology of Southern Snohomish County (PDF)The map area includes eighty-five square miles in South Snohomish County southeast of Everett, bounded on the west by Interstate 5, on the south by Highway 405 and the Snohomish-King County boundary, on the east and north by the Snohomish River floodplain.