I don't think so, at least from what I've seen. La Libertad and Cajamarca are probably the regions where seeing "pure indigenous" phenotypes is very rare. Not to mention that these are the most European regions in the north, along with Amazonas.
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It has a lot of Amerindians in the highland part of the state, but lowlands are more Mestizo-dominated:
https://i.postimg.cc/DzDQqbG6/Chiapas1.png
https://i.postimg.cc/7YVgKR7b/Chiapas2.png
https://i.postimg.cc/k4QVBVvH/Chiapas3.png