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Solano County

Hartley

Attractions and Places To See around Hartley - Top 8

Best attractions and places to see around Hartley include a mix of historical sites, natural features, and trails. The region offers opportunities to explore historical landmarks and enjoy scenic outdoor spaces. Visitors can find a variety of landscapes, from historical adobes to lakes and ridge trails.

Best attractions and places to see around Hartley

  • The most popular attractions is Peña Adobe/Lagoon Regional Park 🏚️ Vacaville, a historical site that preserves the 1842 adobe home of one of Solano County's…

Last updated: June 24, 2026

Peña Adobe/Lagoon Regional Park 🏚️ Vacaville

Highlight • Historical Site

Some of the first settlers to arrive in Solano County were the families of Juan Manuel Vaca and Juan Felipe Peña. The Peña family included Juan Felipe Peña, his wife …

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Lagoon Valley Park Ridge Trail

Highlight (Segment) • Trail

Wide gravel fire road leading to the top of the ridge with a radio tower, overlooking the entire valley, Vacaville, and the 470-acre park with the lagoon below. The adjacent …

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Lake Solano

Highlight • Lake

Lake Solano is a scenic reservoir on Putah Creek in the coastal foothills just a few miles from Vacaville. The lake is popular for boating and fishing.

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Peña Adobe Hill

Highlight • Viewpoint

This hill offers stunning panoramic views of the valley and is a fantastic spot to take a moment to catch your breath and enjoy the scenery. There is a sign …

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California State Prison - Solano

Highlight • Monument

From the highest point of the ridge in Lagoon Valley Park there is a straight view down into what looks like a Concentration Camp: California State Prison - Solano. The …

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June 18, 2025, Lake Solano

Lake Solano is a scenic reservoir on Putah Creek in the coastal foothills just a few miles from Vacaville. The lake is popular for boating and fishing.

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July 22, 2024, Peña Adobe Hill

This hill offers stunning panoramic views of the valley and is a fantastic spot to take a moment to catch your breath and enjoy the scenery. There is a sign here marking the end of the trail where you can head back, or follow the path to continue the loop back to the parking area.

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Some of the first settlers to arrive in Solano County were the families of Juan Manuel Vaca and Juan Felipe Peña. The Peña family included Juan Felipe Peña, his wife Isabella Gonsalves, five sons and one daughter. Having previously lost his wife in 1839, the Vaca family consisted of Juan Manuel Vaca and his eight children. The Vaca and Peña families traveled from the New Mexico region to California following the Old Spanish Trail which terminated at Pueblo de Los Angeles. Arriving in southern California after their two month journey on November 15, 1841, they met General Mariano Vallejo, who maintained his headquarters in Sonoma, following Mexico’s independence from Spain. He told them of fertile land in the north called the Laguna Valley, and agreed to grant them a vast amount of this land if they fulfilled the requirement to build homes, plant trees and pasture livestock within one year. The families continued north on the El Camino Real through Santa Barbara to Monterey arriving, in what later became, the Vaca Valley. The Peña Adobe was erected in 1842. The simple adobe with its dirt floors and four windows still has the original hand-hewn redwood timbers which were cut in the hills near Napa. The walls are two feet thick and made of 23”x10”x3” adobe mud bricks. 25 Mission-trained Indians sun dried the adobe bricks and built both Vaca and Peña’s adobes. (The Vaca Adobe was built to the east of the Peña Adobe. It was destroyed by the earthquake of 1892.) When the families had satisfied Vallejo’s requirements, the 44,384 acre site named Rancho Los Putos, was officially granted to Vaca and Peña in 1845. The territory encompassed all of Lagoon Valley and stretched into Yolo County. Both families engaged in cattle ranching as hides and tallow were the principal source of trade and income. On August 21, 1850 Vaca sold a portion of his land to William McDaniel for three thousand dollars. The transaction included the specific condition that “…the said McDaniel is to lay off on any one square mile of said land a town to be called Vacaville”. Vacaville was founded the following year in 1851. Juan Felipe Peña died on March 15, 1863. Mrs. Peña lived in the Peña Adobe until her death in 1885 being cared for by her only daughter, Nestora. While all the Vaca land holdings were sold by 1880, Nestora Peña retained her inheritance until eighty years of age, and lived in the Peña Adobe until after the death of her husband in 1900. She later moved to Vacaville where she resided until her death in 1922. Having no children, she deeded her inheritance, consisting of the Adobe and 90 acres, to the two oldest Peña grandchildren, Maria Delores Peña Lyon, and her cousin Vidal Peña. The Adobe remained with their children until 1957, eventually becoming a Vacaville City park in 1965. http://www.penaadobe.org/about

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Wide gravel fire road leading to the top of the ridge with a radio tower, overlooking the entire valley, Vacaville, and the 470-acre park with the lagoon below. The adjacent Regional Park includes the historic Pena Adobe home. The Lagoon Valley Park has barbecue areas, horseshoe pit, multi-purpose field, bike trails, a small pond, excellent hiking, Lagoon Valley Lake for fishing and non-motorized boating. The park also features a 30,000 -square-foot fenced in dog park complete with trees, water and trash receptacles. http://www.cityofvacaville.com/index.aspx?page=100&recordid=59

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From the highest point of the ridge in Lagoon Valley Park there is a straight view down into what looks like a Concentration Camp: California State Prison - Solano. The male-only prison holds over 5000 inmates, double its design capacity. The adjacent California Medical Facility prison has a design capacity of 2,179 but a total institution population of over 3,000 sick inmates. The California prison construction boom between 1984 and 2005 was driven by years of increasingly tough anti-crime legislation, and began with the construction of California State Prison, Solano, which opened in August 1984 https://en.wikipedia.org/wiki/California_State_Prison,_Solano

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Frequently Asked Questions

What historical sites can I visit around Hartley?

The primary historical attraction is Peña Adobe/Lagoon Regional Park in Vacaville. This site preserves the 1842 adobe home of one of Solano County's first settlers, offering a glimpse into early Californian history. The adjacent Lagoon Valley Park also features the historic Pena Adobe home.

Are there any natural attractions or scenic viewpoints in the Hartley area?

Yes, the region offers several natural spots and viewpoints. Lake Solano is a scenic reservoir on Putah Creek, popular for boating and fishing. For panoramic views, consider the Lagoon Valley Park Ridge Trail or Peña Adobe Hill, both offering stunning vistas of the valley.

What outdoor activities are available near Hartley's attractions?

You can enjoy a variety of outdoor activities. The area is great for hiking, with options like the easy hikes around Hartley, including trails around the Valley Glen Drainage Pond. Cycling is also popular, with routes such as those found in the cycling around Hartley guide. Lake Solano is ideal for boating and fishing.

Are there family-friendly attractions around Hartley?

Absolutely. Peña Adobe/Lagoon Regional Park is family-friendly, combining history with outdoor space. Lake Solano is also a great spot for families to enjoy boating and fishing. Many of the easy hiking and cycling trails are suitable for families.

Where can I go for a walk or hike near Hartley?

For walks and hikes, consider the Lagoon Valley Park Ridge Trail, which is an intermediate trail offering great views. There are also several easy hiking options around Hartley, including trails like Valley Glen Drainage Pond and Browns Valley Open Space Trail. For more extensive hiking, check out the hiking around Hartley guide.

What kind of cycling opportunities are there in the Hartley area?

The Hartley area offers various cycling routes. You can find a quiet spot for cycling around the Valley Glen Drainage Pond. For more structured rides, explore the cycling around Hartley guide, which includes routes of varying difficulty, such as the Steady Eddy's Coffee House – Lake Solano loop.

What do visitors enjoy most about the attractions around Hartley?

Visitors particularly appreciate the blend of historical significance and natural beauty. The historical insights provided by the Peña Adobe and the scenic tranquility of places like Lake Solano are frequently highlighted. The panoramic views from spots like Peña Adobe Hill are also a favorite.

Are there any trails with good viewpoints near Hartley?

Yes, the Lagoon Valley Park Ridge Trail is known for its wide gravel fire road leading to the top of a ridge with a radio tower, offering views of the entire valley and Vacaville. Similarly, Peña Adobe Hill provides stunning panoramic views and is a great spot to enjoy the scenery.

Can I find places for fishing or boating near Hartley?

Yes, Lake Solano is a popular destination for both fishing and non-motorized boating. It's a scenic reservoir on Putah Creek, offering a natural setting for these activities.

What is the difficulty level of trails around Hartley?

Trails around Hartley vary in difficulty. You can find easy hikes like those around the Valley Glen Drainage Pond. Intermediate options include the Lagoon Valley Park Ridge Trail and Peña Adobe Hill. For cycling, routes range from moderate to difficult, as detailed in the cycling guide.

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