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Grotto Geyser (31730283603)

Hike

OB4 Campsite Spur Trail

Ends at Mallard Lake
Inside Yellowstone National Park

7.1 mi out & back · 919 ft gain · 8,142 ft high point · Moderate

Via the Mallard Lake Trail (3.4 mi)

In Yellowstone National Park · Wyoming · National Park Service

About Elevation Highlights Map Camp near here More hikes

About this hike

This 7.1-mile out-and-back trail via Mallard Lake Trail reaches Mallard Lake in Yellowstone, gaining 919 feet and passing hot springs.

Elevation

919 ft of gain round trip.

Camp near here

The closest places to sleep, measured from the trailhead.

See all on the map

13.0 mi from the trailhead
Madison Campground
Campground · Wyoming

More hikes nearby

Ranked the same way, within twenty-five miles.

20 mi from you
Mount Sheridan Trail
- Summits Mount Sheridan
- Inside Yellowstone National Park
- 4,493 ft of climbing
23.2 mi out & back · 4,493 ft gain · Very hard
Yellowstone National Park · Camp 3 mi away

Out: 790 ft up, returns the same way. Source: USGS 3DEP.

Highlights

What the trail reaches, measured from the start.

Mallard LakeDestination · 3.4 mi in
Hot springAlong the way · 0.5 mi in
Observation PointNearby · 0.0 mi in
Geyser HillNearby · 0.0 mi in
Hot springNearby · 0.0 mi in
Mallard lake overlookNearby · 3.5 mi in

Map

The hike from its start, the approach dashed. Drag with two fingers, or hold a key to zoom.

Trail data: USFS, NPS, © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP via Mapzen terrain tiles. Nearby reading: Wikipedia. Photos: Wikimedia Commons contributors, licensed as shown on each photo. Download the trail and feature data.

At a glance

Length: 7.1 mi
Shape: Out & back
Gain: 919 ft round trip
High point: 8,142 ft
Low point: 7,356 ft
Difficulty: ModerateFrom 7.1 mi and 919 ft of climbing
Managed by: National Park Service
State: Wyoming
Camps within 15 mi: 4
Trailhead: 44.4585° N · 110.8244° W

Get directions Open the map

13.0 mi from the trailhead

Madison Campground

Campground

13.6 mi from the trailhead

Grant Village Campground

Campground · Wyoming

25 mi from you

North Rim Trail

Ends at Lower Yellowstone Falls
Inside Yellowstone National Park
Camp under a mile away

4.5 mi out & back · 531 ft gain · Moderate

Yellowstone National Park · Camp under a mile away

Union Falls Trail

Ends at Union Falls
Inside Yellowstone National Park
2,039 ft of climbing

15.3 mi out & back · 2,039 ft gain · Very hard

Yellowstone National Park · Camp 8 mi away

West Thumb Geyser Basin Trail

Ends at a hot spring
Inside Yellowstone National Park
Camp 2 mi away

0.4 mi out & back · 31 ft gain · Easy

Yellowstone National Park · Camp 2 mi away

Uncle Tom's Trail

Ends at Lower Yellowstone Falls
Inside Yellowstone National Park
Camp 2 mi away

1.6 mi out & back · 380 ft gain · Easy

Yellowstone National Park · Camp 2 mi away

UGB-Riverside Geyser Overlook Trail

Ends at Variable Spring
Inside Yellowstone National Park

2.4 mi out & back · 92 ft gain · Easy

Yellowstone National Park · Camp 11 mi away

More like this

Hikes that read like this one, wherever they are.

OB3 Campsite Spur Trail
- Ends at Mallard Lake
- Inside Yellowstone National Park
7.2 mi out & back · 917 ft gain · Moderate
Yellowstone National Park · Camp 13 mi away
OB2 Campsite Spur Trail
- Ends at Mallard Lake
- Inside Yellowstone National Park
0.0 mi one way · Easy
Yellowstone National Park · Camp 12 mi away
OD4 Campsite Spur Trail
- Passes a hot spring
- Inside Yellowstone National Park
6.5 mi out & back · 48 ft gain · Easy
Yellowstone National Park · Camp 6 mi away
Mallard Creek Trail
- Ends at Mallard Lake
- Inside Yellowstone National Park
- 1,301 ft of climbing
8.5 mi out & back · 1,301 ft gain · Hard
Yellowstone National Park · Camp 10 mi away

Signal

Cell coverage here

VerizonLTE · Excellent

FCC coverage data · signal varies in remote terrain

Weather

7-day forecast

Tue45°22°Areas Of Fog
Wed50°20°Mostly Sunny
Thu42°22°Partly Sunny
Fri38°21°Partly Sunny
Sat44°21°Mostly Sunny
Sun49°25°Mostly Sunny
Mon50°Partly Sunny

Tue: Areas Of Fog then Sunny · wind 3 mph SSE

National Weather Service · refreshed hourly