Mad River Humboldt County Geology Marble

K r 1989 geology of patrick s point state park humboldt county california geology v.

Mad river humboldt county geology marble.

Mad river is located in the southern part of the county. The mad river is a river in upper northern california it flows for 113 miles 182 km in a roughly northwest direction through trinity county and then humboldt county draining a 497 square mile 1 290 km 2 watershed into the pacific ocean north of the town of arcata near arcata eureka airport in mckinleyville the river s headwaters are in the coast range near south kelsey ridge. Mad river alliance is a 501 c 3 humboldt county california. The dispersed trinidad coastal festival planned for saturday sept.

Create an account increase your productivity customize your experience and engage in information you care about. The zip code is 95552. The 2010 united states census reported mad river s population was 420. Invasive dense flowered cordgrass spartina densiflora has infested an estimated 90 of salt marshes in humboldt bay and the adjacent eel and mad river estuaries.

The trinidad coastal land trust together with its multiple partners in the california coastal national monument gateway group is dedicated to educating the community about the. 26 and featured in last week s column has been changed to a virtual event which visitors can enjoy on the trinidad coastal land trust facebook page. Mad river alliance is a community driven group working to protect clean local water and the ecological integrity of the mad river watershed for the benefit of its human and natural communities. Mad river formerly kuntz is a census designated place cdp in trinity county california.

The mad river discharged an average suspended sediment load of 2 710 000 tons per year during a 13 year period beginning october 1957. The invasion of spartina threatens the natural diversity and structure of salt marshes in humboldt bay as well as other estuaries along the west coast. The area is tectonically active and is cut by the mad river fault zone the little salmon fault the russ and false cape fault zones and perhaps others unnamed and unmapped until earthquakes reveals their locations.