Basic hydrologic data collection, processing, analysis, dissemination, and archiving are major parts of the California Water Science Center program. Over 100 research projects addressing California's key water issues including: long-term water supply and availability, water quality, droughts and floods, climate change, aquatic ecology, the Delta, management of watersheds and groundwater.

Waterskiing, Wakeboarding, and every other kind of thrill-seeking adventure on the end of a tow rope. California lakes are home to some of the greatest excitement on water, from the glassy channels of Lake Havasu to the winding arms of Shasta Lake. Whatever your pleasure, there's likely a great lake to suit your needs within easy driving distance. Some lakes buzz with jet skis and wakeboarding boats, while other lakes spread in restful quiet with the only sounds the rustle of the wind in the trees and the swish of a paddle. Find the right lake for you. We have all the best ones right here on California's Greatest Lakes.

All about Clear Lake Resorts, Clear Lake Boating, Clear Lake Marinas, Clear Lake Boat Ramps and Clear Lake Camping. Clear Lake is the largest, natural freshwater lake in California... it's 19 miles by 8 miles at it's widest point with over 68 square miles of surface area.

The James River is Virginia's largest river, flowing across the entire state from its beginning at the headwaters of the Cowpasture and Jackson Rivers in Bath and Highland Counties, to its mouth at the Chesapeake Bay in Hampton Roads. It is Virginia's largest tributary to the Chesapeake Bay. The James River is a wonderful destination for recreation and enjoyment. Each year millions of Virginians go to the James and its tributaries to boat, fish, swim, hike or just take in the beautiful scenery. The mission of the James River Association is to be guardian of the James River. We provide a voice for the river and take action to promote conservation and responsible stewardship of its natural resources. Richmond, Virginia

There many outdoor activities available at Lake Tahoe. None is better than boating at Lake Tahoe. The pure beauty of the Lake Tahoe area will capture your senses. The clear waters, mountain scenery and wooded shoreline are just part of the 'big picture' of the Lake Tahoe area. Use our Lake Tahoe map to access boating facility information about boating at Lake Tahoe.

Maine Rivers, begun in 1998 as a project of the Natural Resources Council of Maine, became an independent organization in the spring of 2003. Our mission is to protect, restore and enhance the health and vitality of Maine's rivers. Yarmouth, Maine

Tourism and Recreation Information for Shasta Lake, California. Resorts, camping, maps, photos, lodging, fishing, boating, and much, much more.

USGS Current Water Data for California including Current Streamflow Conditions