In 1920, the Mineral Leasing
Act allowed for leasing, exploration, and production of coal, oil, gas,
and sodium on the public lands.
In 1934, when overgrazing threatened western rangelands, Congress passed the Taylor Grazing Act, and thus was created the US Grazing Service.
|In 1937, the Oregon and California (O&C) Act set forth the requirements for the management of the timberlands in western Oregon.|