Man-made structures with walls and roofs for protection of people and/or materials, but not does not include churches, hospitals, or schools.

Places or areas for burying the dead including burying grounds, burials, graves, and memorial gardens.

Buildings used for religious worship including chapels, mosques, synagogues, tabernacles, and temples.

Political divisions formed for administrative purposes including boroughs, counties, municipios, parishes, towns, and townships.

Buildings where the sick or injured may receive medical or surgical attention including infirmaries.

Natural bodies of inland waters including backwaters, lacs, lagoons, lagunas, ponds, pools, resacas, and waterholes.

Places at which there is or was human activity including battlefields, crossroads, camps, farms, ghost towns, landings, railroad sidings, ranches, ruins, sites, stations, windmills. It does not include populated places, mines, or dams.

Places or facilities formerly used for various aspects of or relating to military activities.

Places or areas with clustered or scattered buildings and a permanent human population including cities, settlements, towns, villages.

Buildings or groups of buildings used as an institutions for study, teaching, and learning including academies, colleges, high schools, and universities.

Linear bodies of water flowing on the Earth's surface including anabranchs, awawas, bayous, branches, brooks, creeks, distributaries, forks, kills, pups, rios, rivers, runs, and sloughs.

Prominent elevations rising above the surrounding level of the Earth's surface including ahus, bergs, balds, buttes, cerros, colinas, cones, cumbres, domes, heads, hills, horns, knobs, knolls, maunas, mesas, mesitas, mounds, mounst, mountains, peaks, puus, rocks, sugarloafs, tables, volcanoes. Does not include pillars, ridges, or ranges.

Man-made facilities maintained for the use of aircraft including airfields, airstrips, landing fields, and landing strips.

Any one of several areally extensive natural features not included in other categories including badlands, barrens, deltas, fans, and gardens.

Places or areas set aside for recreation or preservation of a cultural or natural resources and under some form of government administration including national historical landmarks, National parks, State parks, wilderness areas. Does not include National or State forests or Reserves.

Official facilities of the U.S. Postal Service used for processing and distributing mail and other postal material.

Artificially impounded bodies of water including lakes and tanks.

Routes for passage from one point to another; does not include roads or highways including jeep trails, paths, and ski trails.

Linear depression in the Earth's surface that generally slope from one end to the other including barrancas, canyons, chasms, coves, draws, glens, gorges, gulches, gulfs, hollows, ravines.