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This is likely a great time to hike this trail!  Check out "Prefered" months below, keep in mind this is an estimate.

Bumpass Hell, CA

Guide 13 Triplogs  0 Topics
  4.2 of 5 
131 13 0
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Difficulty 2 of 5
Route Finding 2 of 5
Distance One Way 1.5 miles
Trailhead Elevation 8,192 feet
Elevation Gain 300 feet
Avg Time One Way 1 hour
Kokopelli Seeds 2.5
Interest Seasonal Waterfall, Perennial Waterfall, Seasonal Creek & Perennial Creek
Backpack Yes & Connecting
varies or not certain dogs are allowed
editedit > ops > dogs to adjust
feature photo
Photos Viewed All Mine Following
Inaugural Calculation on Button Tap!
5  2020-09-06
Bumpass Mill Hike
3  2019-07-27 lojones5
8  2017-09-03 lojones5
8  2016-09-10 Lucyan
15  2015-09-01 zukerrach
22  2014-07-06 JimmyLyding
7  2013-09-08 PatrickL
6  2013-08-02 southpawaz
Page 1,  2
Author AZLOT69
author avatar Guides 175
Routes 247
Photos 7,884
Trips 1,914 map ( 16,193 miles )
Age 70 Male Gender
Location Gold Canyon, AZ
Historical Weather
Trailhead Forecast
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Preferred   Jul, Aug, Sep, Jun → 7 AM
Seasons   Late Spring to Early Autumn
Sun  4:36am - 7:40pm
Official Route
1 Alternative

Pathway To The Darkside
by AZLOT69

Likely In-Season!
All four types of volcanos can be located within Lassen National Park. These are plug dome, shield, cinder cone and strato. There is one furnace that generates all the features within the park which include steam vents, mud pots and boiling springs. Bumpass Hell is the largest escape valve for this active but resting volcanic area.

Discovered in 1864, Mr. Kendall Vanhook Bumpass filed a mining claim and intended to develop the area into a tourist attraction. One day while walking in the area Bumpass fell thru the thin crust of earth into a mud pot severely burning his leg and eventually loosing it. His dream never materialized.

The hike is three miles out and back gaining about five hundred feet early, then loosing 250 feet descending into Bumpass Basin. The sixteen acre basin features seventy five fumaroles, hot springs, and mud pots in the shadow of Bumpass Mountain, a dome volcano. What sounds like a jet engine is the Big Boiler, the hottest fumarole in a non erupting volcano in the world. The steam coming out of this fumarole is measured at 322 degrees Fahrenheit. Hydrogen sulfide gas released from the earth gives the area a rotten egg smell.

The hike starts off very rough and begins its climb of five hundred feet to some nice panoramic views of Lake Helen, Brokeoff Mountain, Lassen Peak, and Diamond Peak. The trail smoothes out going through some forested areas with vast views of valleys to the south and east. Most of the summer water can be heard in the creeks below as area melting snow pack lasts well into August. After a short time along a ridgeline, the trail starts down the other side to a viewpoint of Bumpass Basin. The trail descends steeply from here into the basin. At the bottom of the descent flows a creek away from the geothermal features. The creek bed is lined with colorful minerals. The danger associated with the thin crust of the basin is managed by a series of boardwalks to prevent injury. Think of the area as under construction. The area is constantly changing and there is potential for danger if you leave the boardwalk. After taking in the many viewpoints return the way you came or you can continue on connecting trails.

Check out the Official Route and Triplogs.

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2009-08-29 AZLOT69

    One-Way Notice
    This hike is listed as One-Way.

    When hiking several trails on a single "hike", log it with a generic name that describes the hike. Then link the trails traveled, check out the example.
    WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.

    Permit $$

    Lassen Volcanic National Park
    Lassen Park Fees

    Map Drive
    Paved - Car Okay

    To hike
    SR 36, 20 miles west of Chester, Ca. Proceed north on Hwy 89, 6 miles to to south entrance of Lassen National Park. The trailhead is 4.25 miles north of the south entrance on the east side of the street Hwy 89.
    page created by AZLOT69 on Aug 29 2009 1:19 pm
    90+° 8am - 6pm kills
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