Hardrock and Osborn Hills Loop Trail

MODERATE 73 reviews

Hardrock and Osborn Hills Loop Trail is a 3.8 mile moderately trafficked loop trail located near Grass Valley, California that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail but must be kept on leash.

DISTANCE
3.8 miles
ELEVATION GAIN
377 feet
ROUTE TYPE
Loop

dogs on leash

kid friendly

birding

hiking

nature trips

trail running

walking

forest

views

wild flowers

wildlife

Walk around Empire Mine State Historic Park and explore several smaller abandoned mines and 100 years of mining history Welcome to Empire Mine State Historic Park, home to Empire Mine, which was once the most profitable gold mine in California during the gold rush. This hike will take you around the Empire Mine site and past several smaller mines which were all eventually absorbed as part of the large mining operation at Empire Mine. Along this hike you will see old foundations and rusted machinery covering 100 years of hardrock mining history.

20 days ago

Nice little hike if you're visiting the mine. Kid friendly.

hiking
1 month ago

Great trail to take the kids on! Many pieces of mining history along the trail to explore.

hiking
1 month ago

Great trail for walking. Watch out for horse droppings!

hiking
1 month ago

Great in-town hike with varied terrain and loop choices that ring the park grounds. Used by locals daily. You share the trail with fellow friendly hikers, bikers, horse riders, and dogs on leash. Return so you can experience the historic state park gold rush learning inside the gate.

1 month ago

Great place for a walk with the kids and dog. Or a trail run.

hiking
2 months ago

Love this place!

3 months ago

Nice morning hike.

hiking
7 months ago

Good morning hike. Easy to navigate. Worked up a nice sweat.

8 months ago

My whole family loved it. Our little army ranges in age from 8 to 40 years old. Easy and fun for all.

hiking
9 months ago

Right next to my house and one of my regular hike/walks. Lot's of little off shoots. My doggie Chloe always loved it. ♡

walking
9 months ago

Hardrock trail started out nice but the last mile is along the main road, no bueno.

hiking
10 months ago

It's was fun lot of people using the trail, not to hard of a walk

hiking
11 months ago

What a great day. Hiked with good friends after enjoying a wonderful lunch at one of the many shaded picnic tables. I will definitely be doing this one again.
Has just enough traffic so a lone hiker will feel safe. Park has easy to follow signs and more than one trail to choose from.
A definite 5 rating!!!!

11 months ago

Great spot. Love being around Empire Mine.

hiking
11 months ago

Great for families and dogs that love to be leashed. Grateful they have preserved this piece of history and that it has geocaches here. I would call this a neighborhood park more than a place to hike.

11 months ago

This was a wonderful hike for our family. We will have to go again and see if there is another way to end the 5 mile loop. The last stretch was next to the busy road, which it why I only gave it a 4 instead of 5, but the rest of the trail was wonderful.

walking
Saturday, August 13, 2016

Easy. Nice short loops.

walking
Wednesday, June 01, 2016

Very nice moderate walk

hiking
Friday, May 27, 2016

Beautiful loop. You can see the mine grounds, but can't enter without a fee - although the museum/visitors center is free. Some steep climbs.

Tuesday, May 24, 2016

Great ride with some good uphill climbs & some great technical riding from beginner to advanced riders

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