A desert is a region that has an average of less than 10 cm (2.5
inches) precipitation per year. Not all desert regions have enough
sand and wind to form dunes. However, the world's deserts do contain
some spectacular dune fields with interesting dune types.
A Calvin College Interim
class spent three weeks in January 2007 studying sand dunes. Along
with several field trips to Michigan's coastal dunes, they learned
about desert dunes and constructed web pages describing some dune
types that are NOT found in Michigan.
Sand dunes class
(Interim 2007) enjoying the view from the top of Mt. Pisgah in Ottawa
County on a blustery January day.