It's impossible to say definitively which landforms come "first" from the west coast to the east coast without specifying a specific country or continent.

Here's why:

* Varying Coastlines: Different countries and continents have vastly different geographical features and geological histories. The landforms along the west coast of one country might be completely different from those on the east coast of another.

* Continental Drift: Continents are constantly moving, and landforms are constantly changing over millions of years. What was once a western coastline could become an eastern coastline with enough time.

To provide a helpful answer, I need more information. Please tell me:

* Which country or continent are you interested in?

* Are you looking for specific types of landforms (e.g., mountains, plains, deserts)?

Once you provide more details, I can give you a much more accurate and useful response!