Can you reserve a site at Lower Penstemon?

Yes, Lower Penstemon is reservable through Recreation.gov.

How many campsites does Lower Penstemon have?

7 sites in total, of which 6 can be booked.

What is the maximum RV length at Lower Penstemon?

30 ft. That is the longest vehicle the sites here are recorded as taking; individual sites may be shorter.

Are pets allowed at Lower Penstemon?

Yes, pets are allowed at Lower Penstemon.

Lower Penstemon, Idaho — 6 sites, fees and cancellation alerts

Overview

Lower Penstemon Campground is located along the scenic Rock Creek Road, in southern Idaho, at an elevation of 6,600 feet. Visitors come to the area to enjoy its abundant trails and natural beauty.

Recreation

Hiking, mountain biking, horseback riding and off-road vehicle trails crisscross the surrounding area. Third Fork, Pike Mountain, Rim View and Porcupine Spring trails all begin nearby. Rock Creek runs along the campground, offering good trout fishing.

Facilities

The campground contains single-family campsites with picnic tables and campfire rings. Vault toilets and drinking water are provided. Roads and parking spurs within the campground are gravel. Because the campground is situated along the main road, some noise from passing cars is to be expected.

Natural Features

The campground is situated in a mixed conifer and aspen forest, just off Rock Creek Road. Most sites have partial shade. Summer wildflowers dot the landscape and wildlife can be seen frequently in the surrounding area.

The facts

Season: May 15-20 — USDA Forest Service, Aug 24, 2026
6 bookable sites
7 sites in total, including non-bookable
Vehicles up to 30 ft
Up to 8 people per site
Loops: LOWER PENSTEMON, S&P

Site types

6 Standard Nonelectric
1 Management

Amenities

Grills
Shade
Pets allowed

Not recorded upstream: electric hookups, water hookups, sewer hookups, campfires allowed, fire pits, picnic tables.

Book on Recreation.gov

7 campsites at Lower Penstemon

Check-in 12:00 PM · Check-out 10:00 AM

Site	Loop	Type	Entry	Surface	Max rig	People
001	LOWER PENSTEMON	Standard Nonelectric	Back In	Gravel	30 ft	8	🐾
002	LOWER PENSTEMON	Standard Nonelectric	Back In	Gravel	30 ft	8	🐾
003	LOWER PENSTEMON	Standard Nonelectric	Back In	Gravel	30 ft	8	🐾
004	LOWER PENSTEMON	Standard Nonelectric	Back In	Gravel	30 ft	8	🐾
005	LOWER PENSTEMON	Standard Nonelectric	Back In	Gravel	15 ft	8	🐾
006	LOWER PENSTEMON	Standard Nonelectric	Back In	Gravel	30 ft	8	🐾
Single S&P	S&P	Management	Back In	Gravel	30 ft	8	🐾

Getting there

Travel south on Twin Falls County Road G3 which becomes Forest Road 515, commonly known as Rock Creek Road, for approximately 27 miles from Hansen.

42.19528, -114.28333 · 42°11'43.0"N 114°16'60.0"W

Directions (Google Maps) · Directions (Apple Maps)

Typical weather

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
High °F	—	—	—	—	—	—	—	—	—	—	—	—
Low °F	—	—	—	—	—	—	—	—	—	—	—	—
Precip in	4.5	3.4	3.3	3.8	3.4	1.9	0.8	0.7	1.2	2.0	3.1	4.8

1991–2020 averages from the nearest NOAA station, 1.1 mi away — not measured at the facility itself, and elevation can make a real difference over that distance.

Map

Common questions about Lower Penstemon

Can you reserve a site at Lower Penstemon?: Yes, Lower Penstemon is reservable through Recreation.gov.
How many campsites does Lower Penstemon have?: 7 sites in total, of which 6 can be booked.
What is the maximum RV length at Lower Penstemon?: 30 ft. That is the longest vehicle the sites here are recorded as taking; individual sites may be shorter.
Are pets allowed at Lower Penstemon?: Yes, pets are allowed at Lower Penstemon.

Also listed by

Lower Penstemon also appears in other federal recreation data. Facts below are matched by name and location, not confirmed by Lower Penstemon's operator.

USDA Forest Service — data as of Aug 24, 2026

This is a fee campground. Fee envelopes and a collection box are provided near the entrance.

Restrictions:

Occupancy : The following act is prohibited within the Minidoka Ranger District: Pursuant to 36 CFR 262.58 (a), camping in any area including a developed recreation site or an undeveloped/dispersed recreation site for more than 14 (fourteen) days in a 28 (twenty-eight) day period. A camper or a grou

USDA Forest Service's own page

Camping near Lower Penstemon

Upper Penstemon Campground 0.1 mi · Campground · we watch it
Pettit Campground 0.9 mi · Campground · we watch it
Diamondfield Jack Campground 1.7 mi · Campground · we watch it
Porcupine Springs 2.2 mi · Campground · we watch it
Steer Basin Campground 6 mi · Campground · we watch it
Pettit Campground 0.9 mi · Campground
Diamondfield Jack Campground 1.7 mi · Campground
Third Fork Campground 4.4 mi · Campground
Bear Gulch Campground 5.4 mi · Campground
Father and Sons Campground 5.5 mi · Campground
Bostetter Campground 6.1 mi · Campground
Harrington Fork Picnic Area 7.3 mi · Facility

Contact

Phone 208-678-0430
Book Recreation.gov

Recreation.gov last updated this record on 2026-02-25.

Lower Penstemon