Despite its common name, not a
fir genus Abies.
Not even a
🌲︎ pine genus Pinus,
spruce genus Picea,
hemlock genus Tsuga,
larch genus Larix
nor
arborvitae/cedar/cypress/incense cedar/juniper several genera.
Instead, …
Part of
genus Pseudotsuga
in
🌲︎ cedar / fir / hemlock / larch / pine / spruce family Pinaceae
in
🌲︎ conifer order Pinales.
Native to western North America:
◦ 🇨🇦 Canada and 🇺🇸 USA in the coastal areas and mountains (var. menziesii),
◦ the 🗻 Rocky Mountains (var. glauca),
◦ extending into Texas and 🇲🇽 Mexico (var. lindleyana).
🗺 Map by county (🇺🇸 USA-48),
🗺 map (scroll down),
🗺 map (North America, Central America). 
Invasive > Hawai'i
🌲︎ State tree of Oregon.
Uses by native peoples
(Ethnobotany database)
On No-Plant List by Seneca Nation of Indians. (pages 59 and 64)
Pseudotsuga hosts caterpillars of 61 species
of butterflies and moths, in some areas.