Mammoth Lakes & the Eastern Sierra Mountain Bike Trail Conditions
Mammoth Lakes sits on the east side of the Sierra above 7,000 feet, home to one of the country's premier lift-served bike parks. Mammoth Mountain Bike Park's descents link to high alpine singletrack and the Lower Rock Creek classic. Volcanic and granitic soils drain fast, but the high elevation means a short summer season with a late opening.
76 featured mountain bike trailselevation 6,329–11,266 ft
Is it muddy in Mammoth Lakes & the Eastern Sierra right now?
Right now about 75 of 75 featured Mammoth Lakes & the Eastern Sierra trails are riding well. Conditions change daily with rain and snowmelt, so the list below shows the live read for each trail, and the chart shows which day ahead is your best bet.
Best time of year to ride Mammoth Lakes & the Eastern Sierra
Typical riding conditions by month, blending heat and trail conditions from 10 years of local climate data — so you can plan a trip for the right window.
The best time to ride Mammoth Lakes & the Eastern Sierra is May through October, when daytime highs sit in the 53–76°F range and the dirt is typically dry. The high country is usually snowbound January through April and November through December. Planning a trip? Those are your safest bets — and for this week, the live forecast below shows exactly which days are riding well (right now 75 of 75 featured trails are good to go).
PrimeSnowbound
Bar height = our ride-friendliness score for a typical year; colour = the main limiting factor; the number under each month is the average daytime high. Based on 2014–2023 climate normals (ERA5); this year's live conditions are below.
Best Mammoth Lakes & the Eastern Sierra mountain bike trails to ride right now
Mammoth Lakes & the Eastern Sierra mountain biking FAQ
What are the best mountain bike trails to ride near Mammoth Lakes & the Eastern Sierra right now?
Today the trails riding best near Mammoth Lakes & the Eastern Sierra are 2727, Minaret Creek Trail and River Trail. The full list below is sorted by today's real conditions, best first, and refreshes every morning, so the top of the list is always your best bet right now. See live conditions →
When will the mountain bike trails in Mammoth Lakes & the Eastern Sierra dry out?
It depends on recent rain and each trail's soil. The 10-day outlook on this page shows how many Mammoth Lakes & the Eastern Sierra trails are expected to be riding well each day, with rain markers, so you can pick the right day instead of guessing. See the 10-day outlook →
Is it too muddy to ride in Mammoth Lakes & the Eastern Sierra after rain?
Right now 0 of 75 featured Mammoth Lakes & the Eastern Sierra trails are reading soft or too muddy to ride. Mammoth Lakes & the Eastern Sierra is mostly decomposed granite soil, which drains fast and firms up quickly after rain, so after a storm some trails firm up within a day while others stay greasy. Riding wet, soft dirt damages trails and leaves ruts, so check the live mud reading on each trail before you head out. Check the live mud reading →
How many mountain bike trails are in Mammoth Lakes & the Eastern Sierra?
Mammoth Lakes & the Eastern Sierra has 76 featured mountain bike trails tracked here for conditions, with more searchable on the live map.
How high are the Mammoth Lakes & the Eastern Sierra trails?
Mammoth Lakes & the Eastern Sierra trails run from about 6,329–11,266 ft. Higher trails hold snow later into spring and dry out later than the lower ones, so conditions can vary a lot across the same area on the same day.
When do the high trails near Mammoth Lakes & the Eastern Sierra melt out?
The high trails near Mammoth Lakes & the Eastern Sierra have largely melted out for now. From late winter through spring this page tracks snow coverage and the estimated melt-out date for each high trail, so you can catch them the moment they open. See the melt-out outlook →
When is the best time to ride mountain bikes in Mammoth Lakes & the Eastern Sierra?
The best time to ride Mammoth Lakes & the Eastern Sierra is May through October, when daytime highs are in the 53–76°F range and the trails are typically dry. The high country is usually snowbound January through April and November through December. This is based on 10 years of local climate data; check the live conditions on this page for how the trails are actually riding today.
What months can you mountain bike in Mammoth Lakes & the Eastern Sierra?
The main riding season in Mammoth Lakes & the Eastern Sierra is roughly May through October; the high trails are usually snowbound January through April and November through December and melt out through spring. This page tracks snow coverage and melt-out daily so you can time the high country.