Quote Originally Posted by OceanSunfish View Post
More thinking this out.................. Too bad there are no photographs (aerial photographs) of the entire delta (all the rivers that converge to create the delta) prior to all the hydraulic mining activity.

The folks at the Moke hatchery are doing the best they can with what little there is to work with...........

Yes the Moke hatchery is doing a good job, I posted a brief video below....But the Delta was once a vast marsh before the miners got there, of course no aerial photos. Here's some other info.

1. The Delta encompasses 738,000 acres.

It stretches inland from Antioch to Stockton, and from Sacramento and West Sacramento at its northernmost point down to Tracy at its southernmost point.

2. Five rivers flow into the Delta, accounting for nearly half of the snowmelt and runoff of the entire state. The most noted are the San Joaquin and Sacramento rivers. The other three are the Mokelumne, Cosumnes, and Calaveras rivers.

Because the Delta is connected to San Francisco Bay, and thus to the ocean, it is affected by tidal action. Although the Delta, for the most part, remains freshwater, this tidal action affects the depth of the waterways. There are approximately two high tides and two low tides every day. Photo: Courtesy USGS

3. Once a vast marsh, the Delta began changing rapidly when unsuccessful miners turned to farming and began draining and reclaiming the land in the mid 1800s.

They were encouraged by federal swampland reclamation laws and the Delta's rich, fertile peat soil. They built levees, creating islands of productive farms. The reclamation of the marshy Delta progressed steadily for many decades, and was pretty much complete by the 1930s. Photo: Public domain/WikiMedia.

4. This is what the Delta looks like today from above. It is a maze of over 1,100 miles of waterways that traverse prime farmland and natural habitat areas, with levees surrounding numerous islands or tracts.