Anchor ads are not supported on this page.

4S Ranch Allied Gardens Alpine Baja Balboa Park Bankers Hill Barrio Logan Bay Ho Bay Park Black Mountain Ranch Blossom Valley Bonita Bonsall Borrego Springs Boulevard Campo Cardiff-by-the-Sea Carlsbad Carmel Mountain Carmel Valley Chollas View Chula Vista City College City Heights Clairemont College Area Coronado CSU San Marcos Cuyamaca College Del Cerro Del Mar Descanso Downtown San Diego Eastlake East Village El Cajon Emerald Hills Encanto Encinitas Escondido Fallbrook Fletcher Hills Golden Hill Grant Hill Grantville Grossmont College Guatay Harbor Island Hillcrest Imperial Beach Imperial Valley Jacumba Jamacha-Lomita Jamul Julian Kearny Mesa Kensington La Jolla Lakeside La Mesa Lemon Grove Leucadia Liberty Station Lincoln Acres Lincoln Park Linda Vista Little Italy Logan Heights Mesa College Midway District MiraCosta College Miramar Miramar College Mira Mesa Mission Beach Mission Hills Mission Valley Mountain View Mount Hope Mount Laguna National City Nestor Normal Heights North Park Oak Park Ocean Beach Oceanside Old Town Otay Mesa Pacific Beach Pala Palomar College Palomar Mountain Paradise Hills Pauma Valley Pine Valley Point Loma Point Loma Nazarene Potrero Poway Rainbow Ramona Rancho Bernardo Rancho Penasquitos Rancho San Diego Rancho Santa Fe Rolando San Carlos San Marcos San Onofre Santa Ysabel Santee San Ysidro Scripps Ranch SDSU Serra Mesa Shelltown Shelter Island Sherman Heights Skyline Solana Beach Sorrento Valley Southcrest South Park Southwestern College Spring Valley Stockton Talmadge Temecula Tierrasanta Tijuana UCSD University City University Heights USD Valencia Park Valley Center Vista Warner Springs

Get in the Peñasquitos Creek riparian zone

This scenic loop follows a creek and has some great views.

Chalk dudleya blooms mid to late summer
Chalk dudleya blooms mid to late summer

The Trans-County Trail is one of several regional trail systems being developed in San Diego County. The Regional Trails Plan includes a total of nine trails that will eventually provide significant north-south and east-west trail corridors in the county. The Trans-County Trail runs east to west over approximately 110 miles from the Salton Sea to the ocean at Torrey Pines. About 70 percent of the trail is over existing trails in the county and is currently open to the public. This section of the trail follows along the Peñasquitos Creek riparian zone from Black Mountain Road east, crossing under I-15 and continuing on for a short distance. This hike includes a scenic loop with great views and diverse chaparral species.

From the parking area, walk down toward the creek and follow the trail that crosses under Black Mountain Road and continues east toward Mercy Road. This well-marked trail is signed “Trans-County Trail.” For the first quarter of a mile, you will be walking along the side of the stables on your left. Once past the stables, the trail will drop down along the riparian zone of Peñasquitos Creek.

Foot bridge along the Trans-County Trail

From this point until crossing under I-15, there will be a profusion of wildflowers in spring and early summer. If hiking during this time, there will be an impressive display of the fuchsia-flowering gooseberry. Much of the trail is shaded by sycamores, coast live oaks, and willows, and will cross the creek a couple of times on well-constructed foot bridges. Just past the first bridge on the right is a pool that is home to fish, crayfish, and other aquatic animals. Look for water striders, also called pond skaters, that are true bugs in the family Gerridae that will be flitting around on the surface. These are delicate water-based insects that can literally “walk on water.” Because of this ability, they have also been called Jesus bugs. They wait for other insects to fall in the water that will become their prey.

Sponsored
Sponsored
The riparian area is home to rushes, willows, crayfish, and water skaters.

Once you pass the second crossing, there are fewer trees close to the trail and more open space that provides many opportunities throughout the season for viewing flowering plants, such as monkeyflowers, goldenbush, buckwheat, and datura. Ahead will be the undercrossing at I-15. Once on the other end, you will cross under the Los Peñasquitos Arch Bridge that was in use until I-15 was completed. This old highway bridge is still in use but only as a bike trail. In 1995 the new bridge was renamed the Cara Knott Memorial Bridge after the San Diego State University student who was killed in the area in 1986.

This is where the 3-mile hike ends by turning back and retracing your steps to your vehicle. For the longer loop hike, continue down this road and skirt around the City of Poway’s pump station. On the back side of the station the trail climbs for a short distance to an old road bed and then continues with a gradual uphill climb through many common chaparral species. After about 0.5 mile, there is an unmarked trail off to the right that heads up a fairly steep but short climb to a saddle on the ridge. This is the high point on the trip where there is a good view of the east end of Los Peñasquitos Canyon. Continue on down the trail to the east to join the main trail close to the creek.

Trans-County Trail, Los Peñasquitos Canyon

When you meet up with the main trail, turn to the left to begin the loop and the return trip. Since this is now on the north-facing slope, there are many flowering plants including toyon and dudleyas. Toyon is also called Christmas berry and is a prominent evergreen shrub or small tree found in coastal sage scrub and chaparral communities. The white summer flowers turn into red berries in winter. Dudleyas are also prominent. They are hardy succulent perennials that can thrive in dry climates, earning their common name as “liveforever.”

This is also a great place to take in a great view of the old highway bridge with the much larger I-15 bridge looming overhead. Continuing on the trail, you will eventually complete the loop and return to the main trail. Go left (west) to return to the parking area via the same trail.

Trans-County Trail, Los Peñasquitos Canyon

Distance from downtown San Diego: 18 miles. Allow 30 minutes driving time (Rancho Peñasquitos). Exit I-15 N at Mercy Rd./Scripps-Poway Pkwy. and follow Mercy Rd. west for 2.6 miles to Black Mtn Rd. and turn right (north). Park at the entrance to Los Peñasquitos Canyon Preserve on the left (west). There is a $3 parking fee. Hiking length: 3 or 5 miles out-and-back with extended loop. Difficulty: Easy. Elevation gain/loss about 100 feet. Follows a well-maintained trail. Mountain bikes and dogs allowed. The shorter hike is good for children.

The latest copy of the Reader

Here's something you might be interested in.
Submit a free classified
or view all
Previous article

Victorian Christmas Tours, Jingle Bell Cruises

Events December 22-December 25, 2024
Next Article

Bringing Order to the Christmas Chaos

There is a sense of grandeur in Messiah that period performance mavens miss.
Chalk dudleya blooms mid to late summer
Chalk dudleya blooms mid to late summer

The Trans-County Trail is one of several regional trail systems being developed in San Diego County. The Regional Trails Plan includes a total of nine trails that will eventually provide significant north-south and east-west trail corridors in the county. The Trans-County Trail runs east to west over approximately 110 miles from the Salton Sea to the ocean at Torrey Pines. About 70 percent of the trail is over existing trails in the county and is currently open to the public. This section of the trail follows along the Peñasquitos Creek riparian zone from Black Mountain Road east, crossing under I-15 and continuing on for a short distance. This hike includes a scenic loop with great views and diverse chaparral species.

From the parking area, walk down toward the creek and follow the trail that crosses under Black Mountain Road and continues east toward Mercy Road. This well-marked trail is signed “Trans-County Trail.” For the first quarter of a mile, you will be walking along the side of the stables on your left. Once past the stables, the trail will drop down along the riparian zone of Peñasquitos Creek.

Foot bridge along the Trans-County Trail

From this point until crossing under I-15, there will be a profusion of wildflowers in spring and early summer. If hiking during this time, there will be an impressive display of the fuchsia-flowering gooseberry. Much of the trail is shaded by sycamores, coast live oaks, and willows, and will cross the creek a couple of times on well-constructed foot bridges. Just past the first bridge on the right is a pool that is home to fish, crayfish, and other aquatic animals. Look for water striders, also called pond skaters, that are true bugs in the family Gerridae that will be flitting around on the surface. These are delicate water-based insects that can literally “walk on water.” Because of this ability, they have also been called Jesus bugs. They wait for other insects to fall in the water that will become their prey.

Sponsored
Sponsored
The riparian area is home to rushes, willows, crayfish, and water skaters.

Once you pass the second crossing, there are fewer trees close to the trail and more open space that provides many opportunities throughout the season for viewing flowering plants, such as monkeyflowers, goldenbush, buckwheat, and datura. Ahead will be the undercrossing at I-15. Once on the other end, you will cross under the Los Peñasquitos Arch Bridge that was in use until I-15 was completed. This old highway bridge is still in use but only as a bike trail. In 1995 the new bridge was renamed the Cara Knott Memorial Bridge after the San Diego State University student who was killed in the area in 1986.

This is where the 3-mile hike ends by turning back and retracing your steps to your vehicle. For the longer loop hike, continue down this road and skirt around the City of Poway’s pump station. On the back side of the station the trail climbs for a short distance to an old road bed and then continues with a gradual uphill climb through many common chaparral species. After about 0.5 mile, there is an unmarked trail off to the right that heads up a fairly steep but short climb to a saddle on the ridge. This is the high point on the trip where there is a good view of the east end of Los Peñasquitos Canyon. Continue on down the trail to the east to join the main trail close to the creek.

Trans-County Trail, Los Peñasquitos Canyon

When you meet up with the main trail, turn to the left to begin the loop and the return trip. Since this is now on the north-facing slope, there are many flowering plants including toyon and dudleyas. Toyon is also called Christmas berry and is a prominent evergreen shrub or small tree found in coastal sage scrub and chaparral communities. The white summer flowers turn into red berries in winter. Dudleyas are also prominent. They are hardy succulent perennials that can thrive in dry climates, earning their common name as “liveforever.”

This is also a great place to take in a great view of the old highway bridge with the much larger I-15 bridge looming overhead. Continuing on the trail, you will eventually complete the loop and return to the main trail. Go left (west) to return to the parking area via the same trail.

Trans-County Trail, Los Peñasquitos Canyon

Distance from downtown San Diego: 18 miles. Allow 30 minutes driving time (Rancho Peñasquitos). Exit I-15 N at Mercy Rd./Scripps-Poway Pkwy. and follow Mercy Rd. west for 2.6 miles to Black Mtn Rd. and turn right (north). Park at the entrance to Los Peñasquitos Canyon Preserve on the left (west). There is a $3 parking fee. Hiking length: 3 or 5 miles out-and-back with extended loop. Difficulty: Easy. Elevation gain/loss about 100 feet. Follows a well-maintained trail. Mountain bikes and dogs allowed. The shorter hike is good for children.

Comments
Sponsored

The latest copy of the Reader

Here's something you might be interested in.
Submit a free classified
or view all
Previous article

Operatic Gender Wars

Are there any operas with all-female choruses?
Next Article

Big kited bluefin on the Red Rooster III

Lake fishing heating up as the weather cools
Comments
Ask a Hipster — Advice you didn't know you needed Big Screen — Movie commentary Blurt — Music's inside track Booze News — San Diego spirits Classical Music — Immortal beauty Classifieds — Free and easy Cover Stories — Front-page features Drinks All Around — Bartenders' drink recipes Excerpts — Literary and spiritual excerpts Feast! — Food & drink reviews Feature Stories — Local news & stories Fishing Report — What’s getting hooked from ship and shore From the Archives — Spotlight on the past Golden Dreams — Talk of the town The Gonzo Report — Making the musical scene, or at least reporting from it Letters — Our inbox Movies@Home — Local movie buffs share favorites Movie Reviews — Our critics' picks and pans Musician Interviews — Up close with local artists Neighborhood News from Stringers — Hyperlocal news News Ticker — News & politics Obermeyer — San Diego politics illustrated Outdoors — Weekly changes in flora and fauna Overheard in San Diego — Eavesdropping illustrated Poetry — The old and the new Reader Travel — Travel section built by travelers Reading — The hunt for intellectuals Roam-O-Rama — SoCal's best hiking/biking trails San Diego Beer — Inside San Diego suds SD on the QT — Almost factual news Sheep and Goats — Places of worship Special Issues — The best of Street Style — San Diego streets have style Surf Diego — Real stories from those braving the waves Theater — On stage in San Diego this week Tin Fork — Silver spoon alternative Under the Radar — Matt Potter's undercover work Unforgettable — Long-ago San Diego Unreal Estate — San Diego's priciest pads Your Week — Daily event picks
4S Ranch Allied Gardens Alpine Baja Balboa Park Bankers Hill Barrio Logan Bay Ho Bay Park Black Mountain Ranch Blossom Valley Bonita Bonsall Borrego Springs Boulevard Campo Cardiff-by-the-Sea Carlsbad Carmel Mountain Carmel Valley Chollas View Chula Vista City College City Heights Clairemont College Area Coronado CSU San Marcos Cuyamaca College Del Cerro Del Mar Descanso Downtown San Diego Eastlake East Village El Cajon Emerald Hills Encanto Encinitas Escondido Fallbrook Fletcher Hills Golden Hill Grant Hill Grantville Grossmont College Guatay Harbor Island Hillcrest Imperial Beach Imperial Valley Jacumba Jamacha-Lomita Jamul Julian Kearny Mesa Kensington La Jolla Lakeside La Mesa Lemon Grove Leucadia Liberty Station Lincoln Acres Lincoln Park Linda Vista Little Italy Logan Heights Mesa College Midway District MiraCosta College Miramar Miramar College Mira Mesa Mission Beach Mission Hills Mission Valley Mountain View Mount Hope Mount Laguna National City Nestor Normal Heights North Park Oak Park Ocean Beach Oceanside Old Town Otay Mesa Pacific Beach Pala Palomar College Palomar Mountain Paradise Hills Pauma Valley Pine Valley Point Loma Point Loma Nazarene Potrero Poway Rainbow Ramona Rancho Bernardo Rancho Penasquitos Rancho San Diego Rancho Santa Fe Rolando San Carlos San Marcos San Onofre Santa Ysabel Santee San Ysidro Scripps Ranch SDSU Serra Mesa Shelltown Shelter Island Sherman Heights Skyline Solana Beach Sorrento Valley Southcrest South Park Southwestern College Spring Valley Stockton Talmadge Temecula Tierrasanta Tijuana UCSD University City University Heights USD Valencia Park Valley Center Vista Warner Springs
Close

Anchor ads are not supported on this page.

This Week’s Reader This Week’s Reader