Henrys Lake State Park Unique Astronomy Site

Henrys Lake State Park Unique Astronomy Site

Overview

Located 90 miles to the northeast of Idaho Falls, Henrys Lake State Park is situated in a wide, flat basin, and surrounded by 10,000-foot peaks. The lake is a shallow alpine lake is as popular with migrating birds as it is with local sport fishers.  Dogs are permitted in the park, but must remain leashed. Camping is available from mid-May through mid-October. Sites are $20–$31/night; cabins are $50–$55/night; reservations are accepted. There are 3 miles of trails for hiking.

The park is located 15 miles from Yellowstone National Park and surrounded on three sides by the Continental Divide. The campsites are situated on the shoreline of the 6,000-acre lake.

A $7.00 Motor Vehicle Entrance Fee (MVEF) is required for every vehicle entering Idaho State Parks (including visitors to campers).

The park is a Bortle 2 scale with excellent dark skies due to its distance from cities and other light pollution.

Location

  • How far outside of Boise? ~374 miles depending on the route taken. This make the drive around 5 hours and 30 minute drive depending on traffic and stops.
  • Google Maps Location

Overnight Accommodations

The park has a total of 90 campsites, with the breakdown being 3 basic sites, 4 cabin camper site, 1 Hike/Bike-In, 8 Full Hookup Sites, and 75 Electric sites.

 
 

Costs:

  Resident Costs Non-Resident Costs
Electric Campsite $30 per night $60 per night
Full Hook-Up $32 per night $64 per night
Cabin $60 per night $65 per night

You can book stays in any Idaho State Park for up to 9 months in advance from today’s date.

Weather

The current weather can be found here.

Current Seeing Conditions/Forecast Charts

The following cleardarksky chart provides a forecast/clear dark sky chart for the RV Park adjacent to the park.

The following clearoutside.com chart will provide a great resource for the skies for those who want to visit.

Make sure to follow us on Twitter and Instagram, and make sure to view our other unique astronomy sites such as this one for more places to view astronomy in the Pacific Northwest.

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