Hardrock and Osborn Hills Loop Trail

MODERATE 61 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.

hiking
4 days ago

Love this place!

hiking
19 days ago

1 month ago

Nice morning hike.

3 months ago

hiking
3 months ago

hiking
3 months ago

3 months ago

hiking
4 months ago

hiking
4 months ago

hiking
4 months ago

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

hiking
4 months ago

5 months ago

5 months ago

5 months ago

5 months ago

6 months ago

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

6 months ago

hiking
6 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
7 months ago

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

hiking
7 months ago