### waters | lake:

Acidic lake
* Most acidic lakes have fish.
* Some acidic lakes have no fish.

Bear lake
* Bear Lake is in the extreme southeast corner of Idaho.
* Bear Lake is located in the mountains of northern Utah
  - on the southeast border of Idaho and the northeast border of Utah
  - on the Idaho border, and partly in that Territory
* Bear Lake is the focus of outdoor recreation in southeastern Idaho
  - highest alpine lake accessible by paved highway in the Rocky Mountains range
  - tributary to the Bear River

Coast lake
* are former bays that have been cut off from the sea.
+ Poland, Geography: European Union member states
  * This coast has several spits, dunes and coastal lakes. Coast lakes are former bays that have been cut off from the sea. These areas are sometimes called lagoons. Szczecin Lagoon is on the western border with Germany. The Vistula Lagoon is on the eastern border with Kaliningrad, province of Russia.

### waters | lake:

Crater lake
* Crater Lake is also the deepest lake in the United States and the fifth in the world
  - ninth deepest lake in the world
* Crater Lake lies in the caldera of a once mighty mountain
  - inside the top of an ancient volcano known as Mount Mazama
+ Crater Lake National Park: National parks in the United States :: Oregon
  * Crater Lake has no streams flowing into or out of it. All water that enters the lake is eventually lost from evaporation or flowing away underground. The lake is re-filled only from snow and rain
  - Lake, Dimensions and depth: Geography of Oregon :: Lakes in the United States :: Volcanoes in the United States :: Calderas
  * The lake has an average depth of. Its maximum depth is. The depth changes slightly as the weather changes. On the basis of maximum depth, Crater Lake is the deepest lake in the United States. It is the second deepest in North America, after Great Slave Lake in Canada. Crater Lake is also the ninth deepest lake in the world

Dry lake
* Many dry lakes contain shallow water during the rainy season, especially during wet years.
* are generally small, round depressions in the surface of the landscape.

Eagle lake
* Eagle Lake is California's second largest natural lake, and one of the more unique.
* Eagle Lake is located in Colorado County Texas
  - Polk County Florida
  - the heart of Florida in Imperial Polk County
  - shallow lake and minor winds make it hard to fish

Eutrophic lake
* are even older and more fertile
  - generally most prevalent in all areas of the United States south of Wisconsin
  - lakes with high concentrations of nutrients
* are often relatively shallow and often have weed beds
  - shallow, with seasonal deficiency in dissolved oxygen
* have a large supply of nutrients and organic matter
  - conditions that support many organisms
* show wide seasonal changes in their biological and chemical conditions.

Freshwater lake
* Most freshwater lakes provide homes.
* are most productive near their shores and near their surface.
* occur at many levels of mountain ranges
  - the top of mountain ranges

Glacial lake
* is filled with sediment or is drained.
* reflect cloud-topped mountains.

### waters | lake:

Lagoon
* Some lagoons have levels
  - support fisheries that are very important for the island
* are also present behind reefs, or in the center of atolls.
* are bodies of water on the landward side of barrier islands
  - important bird nesting sites and provide nurseries for fish
  - man-made containment ponds for fecal waste
  - natural things
  - particularly vulnerable to the development of towns or cities around their edge
* can also provide a source of flush water
  - become host to an anaerobic environment
* create odors.
* form natural aquarium of brilliantly colored tropical fish.
* gradually fill in, get shallower, and become salt marshes.
* have extremely variable water chemistry depending on climate.
* includes gaps.