California’s Deadlocked Delta: Interactive Map

The Sacramento-San Joaquin Delta is at the heart of California’s water supply. This inland delta, where two major rivers converge and mingle with San Francisco Bay tides, has been re-engineered and re-plumbed over the last 160 years to meet the needs of a growing state.

Little is known about the Delta as it once was. Now, as efforts get underway to save the Delta’s failing ecosystem, researchers at the San Francisco Estuary Institute are reconstructing this complex landscape using thousands of historical sources.

http://science.kqed.org/quest/delta-map/ (via @the_wrangler)