Las
Gallinas Wildlife Ponds,
Las Gallinas Valley Sanitary District,
Marin County
In brief:
4.6 mile out and back flat hike past water treatment ponds teeming with birds.
Getting there:
From US 101 in Marin County, exit Lucas Valley Road/Smith Ranch Road. Drive east
about 0.7 mile on Smith Ranch Road, then at the McInnis Park entrance, turn left
to remain on Smith Ranch Road. Drive on Smith Ranch Road about 0.8 mile, to the
signed trailhead at the end of the road.
Trailhead details:
Parking for about 10 vehicles in a gravel lot. No parking or entrance fees. One
designated handicapped parking spot, and trails are wheelchair-accessible, though
likely to be muddy in winter and early spring. Wheelchair-accessible restroom
in the building near the start of the trail. Drinking water near the information
signboard, a short distance from the trailhead. No maps available. There is no
direct public transportation to the wildlife ponds, but several Golden Gate Transit
buses stop at the Lucas Valley Bus Pad on 101. From there it's 1.5 level miles
to the ponds.
Gas, food, and lodging:
Pay phone, gas, restaurants, and stores back toward 101 on Smith Ranch Road. No
camping.
Distance, category, and difficulty:
Trails are completely flat, and this 4.6 mile out and back hike
is very easy. A good choice for parents with strollers and people in wheelchairs.
Rules:
Dogs allowed on leash. No posted rules regarding horses, which you are unlikely
to encounter. Bikes are permitted, but not on the last mile of the public trail.
The Official Story:
Las Gallinas Valley Sanitary
District website
Las Gallinas Valley Sanitary District office 415-472-1734
Map Choices:
• Use AAA's San Francisco Bay Region map to get there.
• Trails of Northeast Marin County (map) is a great map of the area
(available from Pease Press).
• Hiking Marin by Don and Kay Martin (order
this book from Amazon.com) has a good map of the wildlife ponds and nearby
McInnis Park.
• View photos from this hike
The Las Gallinas Wildlife Ponds are also holding
tanks for treated liquid waste. You'll have better luck selling this hike to your
friends or family by describing it as an easy stroll along a marsh and past ponds
teeming with birds, rather than explaining that you'll be walking on service roads
that wind past pools of effluent near a sewage treatment plant. It's not as grim
as the it sounds. Not only is there no nasty smell at Las Gallinas (at least there
wasn't on my visit), but the sanitary district has created a warm and welcoming
environment for recreation and education.
The sewage treatment facility was assembled in 1985.
Waste is initially processed at the plant across the street from the trailhead,
then the treated sewage is either stored in the adjacent ponds, recycled as irrigation
water, or discharged into Miller Creek, which feeds into San Pablo Bay. By reclaiming
waste water, drinking water is conserved, and a nice side benefit is the easement
permitting use of 3 1/2 miles of trails on the sanitary district's lands.
The flat trails are perfect for jogging,
or for easy family strolls. There are picnic tables a short distance from a trailhead,
nicely landscaped grounds, and one of the most beautiful public toilets in the
bay area. Since there is no fishing permitted, the ponds retain a sense of peace
and quiet sometimes lacking around local lakes, ponds, and shorelines.
The logical hike is an out-and-back semi-loop, combining
a walk along the marsh to the edge of the property (near Hamilton Field), with
a circuit of a wildlife pond. You can extend a hike to the wildlife ponds by beginning
back at McInnis Park and walking either on the road, on a trail bordering the
golf course (passing an old Nike missile site), or a levee path at the eastern
edge of the park.
Start at the parking 
lot
and take the brief connector path to the east. Walk north, initially on
pavement, across a bridge where Miller Creek makes its way toward the bay.
On the other side of the bridge, the trail splits just before an information signboard.
Continue straight.
The wide gravel road (used by district vehicles)
skirts the primary wildlife pond, where you might see ducks, geese, and white
pelicans. Don't be surprised if you glimpse movement just beneath the water's
surface; huge fish (carp, I think) swim in this pond. Signs warn that the water
contains waste effluent. Yellow star thistle, dock, and fennel line the trail,
with cattails closer to the water. At 0.24 mile, a road veers left, heading back
around the pond. Continue straight.
There are nice views west to Big Rock Ridge, south
to China Camp, and even further south to Mount Tam. Traffic noise from Highway
101 is
just barely audible, but fades with every step. At 0.53 and 0.66 mile, you'll
pass restricted roads heading off to the left. Continue straight.
The trail leaves the ponds behind, and passes a
bare field. Some shrubby willows and a few out of place pines line the path on
the left, while coyote brush gives way to pickleweed on the right, marsh side
of the trail. Curving north, the trail offers views to duck blinds on San Pablo
Bay, and all the way to Mount Diablo on a clear day. At 1.07 miles, marked by
a small sign, the public trail turns sharply right (the road to the left is restricted).
Turn right.
Blackberry brambles sprawl along the left side
of the trail. Further west, hayfields are irrigated with wastewater recycled at
the sewage treatment plant near the trailhead. The flat trail bends left 
and
continues north. Sharp-eyed hikers should be able to make out the buildings of
the former Hamilton Air Force Base to the northwest. Back to the southwest, the
blue-roofed Marin Civic Center is visible. Along the trail, you might see saltmarsh
dodder, a plant that in summer resembles dried clumps of cut grass. At 2.13 miles,
the public trail ends at an unsigned junction. A restricted road heads west, and
a small path continues north, to a ramshackle structure that my topographical
software claims is an old rescue tower. Retrace your steps back to a previously
encountered junction at 3.99 miles, with the penultimate wildlife pond road,
marked with a small blue "public trail" sign. Turn right.
You'll have the opportunity to observe birds in
the ponds on both sides of the trail, and to savor more pretty views of Mount
Tam, San Pedro Mountain, and Big Rock Ridge. On my hike, something had caught
one of those huge fish and picked half of it clean just off the trail. At 4.17
miles, a restricted road bears right at a signed junction. Turn left, as directed
by the public trail sign.
Following the contour of the pond, the trail sweeps
to the left, passes the picnic area, and reaches a previously encountered junction
at 4.60 miles. On a warm July afternoon a king snake crossed the trail in front
of me along this stretch. Turn right and retrace your steps back to the trailhead.
Total distance: 4.62 miles
Last hiked: Monday, July 9, 2001
Go to Bay Area Hiker Home page
tanks for treated liquid waste. You'll have better luck selling this hike to your
friends or family by describing it as an easy stroll along a marsh and past ponds
teeming with birds, rather than explaining that you'll be walking on service roads
that wind past pools of effluent near a sewage treatment plant. It's not as grim
as the it sounds. Not only is there no nasty smell at Las Gallinas (at least there
wasn't on my visit), but the sanitary district has created a warm and welcoming
environment for recreation and education. 
permitting use of 3 1/2 miles of trails on the sanitary district's lands.
lot
and take the brief connector path to the east. Walk north, initially on
pavement, across a bridge where Miller Creek makes its way toward the bay.
On the other side of the bridge, the trail splits just before an information signboard.
Continue straight.
just barely audible, but fades with every step. At 0.53 and 0.66 mile, you'll
pass restricted roads heading off to the left. Continue straight.
and
continues north. Sharp-eyed hikers should be able to make out the buildings of
the former Hamilton Air Force Base to the northwest. Back to the southwest, the
blue-roofed Marin Civic Center is visible. Along the trail, you might see saltmarsh
dodder, a plant that in summer resembles dried clumps of cut grass. At 2.13 miles,
the public trail ends at an unsigned junction. A restricted road heads west, and
a small path continues north, to a ramshackle structure that my topographical
software claims is an old rescue tower. Retrace your steps back to a previously
encountered junction at 3.99 miles, with the penultimate wildlife pond road,
marked with a small blue "public trail" sign. Turn right. 