Many geocaches are hidden within areas that are generally open to access by the public, such as parks, national forests, etc. Agencies and their employees that are charged with the stewardship of these public lands (referred to on this web site as land managers or land management) have legitimate concerns that geocaching and the hiding of geocaches may have an adverse impact on environmentally sensitive lands, sites of historical or archaeological significance, and the like. As a result, many agencies have adopted policies regarding geocaching. These policies range from the prohibitive through the restrictive to the permissive.