One of the Arizona National Parks: Petrified __
This page is the CodyCross answer for the clue below from Making a Documentary, Group 1510, Puzzle 4 (Film Festivals).
Question is: One of the Arizona National Parks: Petrified __
and the answer is: FOREST
Word Meaning:
FOREST — A dense uncultivated tract of trees and undergrowth, larger than woods.
Definitions from Wiktionary.