Idaho State Parks Light Pollution

Idaho State Parks

We previously did an article on the 2024 solar eclipse for the several US state parks, and figured that there is an amazing opportunity for mapping those state parks to their Bortle Scale values. With the help of, we created the following table to provide information about the entire state parks for Idaho in regards to light pollution and astronomy.

ItemHow Many
Number Of State Parks27
Number of Different Bortle Scales5
Level 1 Bortle Scale State Parks0
Level 2 Bortle Scale State Parks7
Level 3 Bortle Scale State Parks13
Level 4 Bortle Scale State Parks3
Level 5 Bortle Scale State Parks3
Level 6 Bortle Scale State Parks1
Table 1: State Park Info

There are 7 parks at Bortle Scale 2 parks, which includes:
Henrys Lake State Park
Harriman State Park
Ashton-Tetonia Trail
Bear Lake State Park
City of Rocks National Reserve
Castle Rocks State Park
Priest Lake State Park

With 7 of the 27 state parks being either a Bortle 1 or 2 scale, this means that 25.925% of the state parks are of these methods.


Here is a show of the colors of the markers, to know how to read the map.

ColorBortle Scale
BlackLevel 1
Dark PurpleLevel 2
BlueLevel 3
GreenLevel 4
YellowLevel 5
OrangeLevel 6
Table 2: Bortle Scale Map Marker

To learn more about the Bortle Scale, check out this article. The Idaho State Parks official website can be found here. Make sure to follow us on Twitter and Instagram, and make sure to come back to check for interesting articles like this, which are posted every week.

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