This is a strange sentence to me (from the Capitol Vista Park website):
There is a continuity in the evolution of this vision from 1911, through
the development of Heritage Park and the Fountain Block, to this next
phase which will be the Capitol Olympic Vista Park.
What’s being talked about here is the plan for a new park across the street from Heritage Park on what is common called the isthmus in downtown Olympia. Really, its one big earthen dam. But, what the writer here is referring to is a 1911 proposal for how that part of downtown should look.
Here’s a representation of what those early 20th century architects (Walter Wilder and Harry White) wanted:
What you’re seeing is something totally different than this:
Wilder and White did not propose a park across the isthmus, they proposed a few block of at least three or four story buildings.