Science

Amphibians

15 species of frogs, toads, and salamanders expected or confirmed in the Glen.

Birds

153 species of birds have been found in Glen Helen.  How many of these will we find in 2008.  Tables here chart their seasonality and historical abundance.

Mammals

36 mammal species expected or confirmed in the Glen.

Reptiles

20 species of turtles, lizards, and snakes expected or confirmed in the Glen.

Trees and other woody plants

56 species of trees commonly found in Glen Helen.

Wildflowers and other herbaceous plants

71 species of herbaceous plants found in the Glen.  Plants are sorted by their traditional flowering dates.

Geology

Take a virtual tour of the geology of Glen Helen.  Join Antioch student Stuart Tredick as he travels the Glen describing and interpreting what we can learn from the rock formations in the preserve.

Research (Under construction)

Habitat Stewardship

Invasive removal, trail maintenance, and other efforts to protect the fragile ecology of Glen Helen.  Clikc here to learn more.

Invasive Species

10 (regrettably) common invasive species found in the Glen