Rimer Creek Loop

24 Mar

Length: 2.5 miles
Time:  45-60 minutes
Difficulty: easy to medium hike with one short steep section
Elevation Gain: 369 feet
Dogs:  Not allowed (but they are allowed on a leash on King Canyon Trail)
EBMUD Permit:  Required (but not during coronavirus outbreak).  Get a permit.
Calories: 400
Highlights:  Most people use the Valle Vista Staging Area to access the popular King Canyon Loop Trail. The Rimer Creek Loop is a much shorter alternative if you’re looking for something quicker and easier.  And it is a nice birding loop, if you want to spend more time with your binoculars and less time hiking.
Directions:  Drive to Moraga. Take Canyon Road until you see the Valle Vista Staging Area on your left.  Park.
Trailhead:   You will see a gate and a sign-in kiosk where you enter your EBMUD permit info (not required during the coronavirus outbreak). Take the trail to the left.
Special Notes:  Bring your binoculars if you have them!

After signing in, go downhill towards the reservoir.  After a couple hundred yards or so, veer left on the path that heads into the pine forest. The trail meanders through a very pleasant mix of pines, oaks, a few young redwoods, and other flowering trees. If you’re into trees, then just before you reach the fire road, look on the left side and you’ll notice the largest California Walnut tree I’ve ever seen! These trees are native to Southern CA, but were planted all over the state (including Walnut Creek).

Hike starts through a pine forest

Take a right on the fire road, crossing the bridge over Moraga Creek, and then look for the Rimer Creek Trail and gate immediately to your left on the other side of the bridge.

Beginning of Rimer Creek Trail

The trail runs adjacent to Rimer Creek, which starts in the hills behind the Sanders Ranch neighborhood. After hiking through the woods next to the creek, you’ll emerge into a horse pasture, where the trail runs directly behind some homes, before turning uphill.

On the way up you’ll notice many teasels.  Teasels are easily identified with their prickly stem and leaves, and the inflorescence of purple, dark pink, lavender or white flowers  that form a head on the end of the stem(s). Teasels are often grown in gardens and nature reserves to attract birds, but are considered an invasive species.

Thistle

Teasels

Once you reach the top, go through the gate opening where it says “Cattle Grazing Keep Gate Closed.” On the other side is the Rocky Ridge Trail. Stop and enjoy great panoramic views of Las Trampas Peak and Rocky Ridge to the East and an arm of the Upper San Leandro Reservoir to the West.  The reservoir was completed back in 1926 by the East Bay Water Co.  The basin/watershed for the reservoir is almost 20,000 acres and 89% of it is open space! How lucky are we?

Great views in all directions!

Head downhill on the Rocky Ridge Trail. When you reach the bottom take a right on the King Canyon Trail, back towards the staging area.  After going through a gate, look out for a bench off to the left of the trail (see picture below).  This is a fantastic spot to relax in the sun for a few minutes and is also a hotspot for viewing birds.  If you think of it, bring your binoculars.  On my most recent visit, I quickly spotted Canadian geese, many American coots, some ducks, a great blue heron, and many more bird species that I didn’t take the time to identify!  A good birding book for beginners (like me) is “A Californian’s Guide to the Birds Among Us.”  For more information on birding check out the Mt. Diablo Audubon Society, which hosts about 45 field trips per year.

Bench with great views of birds

Two Canadian Geese

Continue down the road. You will pass a horse stable and either see horses there or grazing on the hill nearby.

Horses grazing

When you reach the bridge, take a quick look for birds in the water.  On my past three visits I’ve seen a pair of hooded mergansers.  They may not look unique from a distance but with binoculars you can see that the males have boldly colored oval shaped heads and brown, compact bodies (as shown).

Moraga Creek with two hooded mergansers

Then head back through the pine forest to the staging area.

 

3 Responses to “Rimer Creek Loop”

  1. Michael Stein March 24, 2020 at 6:21 pm #

    Thanks for posting this hike, Steve. I’ll look forward to exploring next weekend!

  2. noah March 24, 2020 at 11:46 pm #

    we tried this loop today but in the opposite direction. we got to the top of the big hill, it started pouring, so we turned around. gotta get the undiscovered hiking in while the undiscovered hiking is good…

    • stever March 25, 2020 at 12:18 am #

      Too bad about the rain. Definitely a hike that can be done in either direction. This hike is not too discovered and thus good for social distancing!

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