They are probably both subalpina now you mention it, the sepals are the wrong shape for chrypseopsis. Plus the labellum looks like subalpina, its also quite late for chrypseopsis even in the hills so not sure what I was thinking!
What is also important is the last photos showing only two leaves. While it is not always mentioned D. subalpina only has two leaves and different to D. chryseopsis which can have 4-9 leaves. I believe these are D. subalpina.
Shortly often D. monticola can replace D. subalpina in the same meadows and be confusing but again they have 5-9 leaves and are both taller and the flowers larger. With subalpina (and other species) it is helpful to include a photo of the leaves.
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