- OpenStreetMap shows that Mohlendorph Creek is a tributary of Venema Creek. The Wikipedia article for Pipers Creek states that Venema Creek is a tributary of Mohlendorph Creek. For now, we will treat OpenStreetMap as the source of truth because the OSM records indicate that King County GIS is the source.
- Limestone (Wikipedia)
Limestone (calcium carbonate CaCO3) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of CaCO3. Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life.
Washington Trails Association
- Carkeek Park (wta.org)
Carkeek Park is located in northwest Seattle, between 3rd Ave NW and Puget Sound. The park includes all of Piper’s Creek (sometimes written without the apostrophe) plus the adjoining side hills and some side streams, plus a beach area. Park trails can be accessed from several points, and there is an access road that leads to a parking area near the beach. Park entrance is free, and official hours are daily, 6 a.m. to 10 p.m.