Next to the center is the refuge's headquarters and an observation deck overlooking seasonal ponds.

The center and headquarters are adjacent to each other off Oregon Route 99W on a knoll above a seasonal pond.

Apart from some seasonal ponds during the rainy season, there is no perennial surface water and groundwater.

It even might refer to seasonal ponds or marshy patches where frogs and similar marsh dwellers breed.

Hidden Lake, a seasonal pond located about halfway to the top, is home to frogs, salamanders and other creatures during the wet season.

During winter rains natural seasonal ponds are created.

An earthen dam near the center of the park creates a seasonal pond.

However, populations that live along rivers, seasonal ponds and swamps seem to be less endangered.

The seasonal pond is known as Cold Pool which is marshy grassland.

Its natural habitats are marshes, forests and seasonal ponds.