California’s largest lake is shrinking and migratory birds are disappearing as its water is now too salty for fish — an environmental disaster and a health hazard for humans.

Another good example of how the Land And Water Conservation Fund enables protection of iconic landscapes nationwide: the Blue Ridge Parkway stretching 469 miles through breathtaking scenery from Virginia to North Carolina.

With fast population growth in the Denver area and fierce competition for water, investors are behind a plan to import water from a Colorado mountain valley hundreds of miles away, a plan largely opposed by farmers and ranchers who depend on water in that valley. A mother’s tasks in a Texas farm family shows how the role of women in agriculture is now vitally important in managing the business of farming and using best practices to conserve soil and water.

Another good example of how the Land and Water Conservation Fund enables protection of iconic landscapes nationwide: the Blue Ridge Parkway stretching 469 miles through breathtaking scenery from Virginia to North Carolina. Researchers explore the role of tiny marine animals in the movement of ocean waters.

Where the Colorado River approaches the Sea of Cortez, a new agreement between the U.S. and Mexico shares the river’s water during times of drought and surplus and dedicates water to the environment, restoring flows and habitat along the river and at the Delta. Conservationists are working hard to re-plant forests and promote wildlife habitat to revive the Delta after years of neglect and desertification. On the leading edge of agricultural technology, young farmers are using data to minimize costs, improve yield and increase profits; a fourth-generation farmer in Illinois shows how it’s done.

From recent episodes of THIS AMERICAN LAND, these brief summaries of stories highlight major repair and maintenance issues affecting America’s national parks.

With new water rights and a major irrigation project under construction, the Gila River Indian Community in Arizona is gearing up for a revival of an agricultural heritage that sustained them for centuries before white settlers arrived. Public-private partnerships in national parks are saving taxpayers money while supporting critical services, maintenance and repairs. With individual fishing quotas for red snapper, charter boat captains on the Gulf Coast adopt new sustainable practices that provide them with more income and safety.

A farmer in southwestern Iowa has a mission to develop his farm as an example to others, using no-till seeding, multi-crop and pasture rotation, minimal fertilizing, and runoff filtering to keep the nutrients in his soil and prevent runoff. The backlog of deferred maintenance in national parks is a growing problem that needs Congress to act: we see the need for urgent maintenance and repairs at the Grand Canyon, the National Mall, and the Martin Luther King, Jr. Historic Site in Atlanta. Rafting down the river through the Rio Grande Del Norte National Monument.

In Wyoming, there’s wide support for protecting wilderness study areas offering a wide range of recreational opportunities and stunning landscapes. Residents in Norfolk, Virginia, use education and innovation to defend their neighborhoods from rising sea levels. In the Pisgah-Nantahala National Forest in western North Carolina, the public is playing a major role in shaping the complex future of the forest. Researchers in Idaho study the difficult lives of pygmy rabbits, providing insights to managing and saving threatened sagebrush landscapes in the West.

Virginians have a plan to create protected wilderness and scenic areas that allow for abundant recreation on their beloved Shenandoah Mountain.

In northern California, residents in five counties work to protect and restore wild public lands and rivers that provide enormous economic benefits for the region. A summary report recaps how conservationists in 25 states are working together to restore grassland habitat for the bobwhite quail, an iconic game bird that has declined dramatically in recent decades. In Idaho, a wide coalition of local groups support federal wilderness designation for the remote Scotchman Peaks roadless area, one of the last and the largest wild landscape in the region. Scientists face the engineering challenge of harnessing the energy of ocean waves to generate electric power.