Love riding on Mount Dora it's always kept up that place will whip you in the shape quick especially at my age of 60 years old I ride out there as much as I can when time allows thanks

Mt. Dora is my fav mtb trails park... The people who maintain it have my greatest respect especially when they do stuff for free so this is my helping contributing back to them and keep up the great work!

I am happy the park is available for all to enjoy!

Absolutely beautiful trail! Thanks SORBA!

SORBA Orlando is the Orlando/Central Florida chapter of the Southern Off-Road Bicycle Association.

Founded in 2013, SORBA Orlando has grown to include eight distinct and fun trails in and around Orlando and its suburbs, with more trail miles on the way!  SORBA Orlando trails offer everything from family-friendly places to ride, endurance bike races and time trials, skills-building sections, and opportunities to give back to the community.

By partnering with the community SORBA Orlando builds and maintains our local trails. Your support goes directly to materials, workday essentials, and training needed to keep the area rolling in a fun, sustainable and safe environment.

We bring several events to the community including the annual Take a Kid Mountain Biking Day and have sponsored The Battle of Snow Hill and Markham Woods Masher endurance races for several years.

\*\* We now offer the opportunity to donate to SORBA Orlando and/or donate to a specific trail. There are eight trails that we maintain and eight trail options to donate to. 

Build! Ride! Learn! Engage! Get involved!

SORBA Orlando

Mission Athletic Club is a social tennis community with a mission to enhance civic wellness

We are a membership-organized community that creates accessible tennis for San Francisco. 

Mission Athletic Club

Connecting community trails, creating a park, and protecting the Rose Creek watershed for the benefit of all.

The Rose Creek Initiative officially formed in 2004 as a group of neighbors advocating to create a small community park in an overlooked and under appreciated corner of the Capitol View Neighborhood. The group's goals also including connecting the park to the neighborhood with a walking trail and cleaning up Rose Creek at the east edge of the Capitol View. The Rose Creek Initiative officially became a 501c3 in 2022.

Rose Creek Initiative

Friends of Nevada Wilderness is a 501c3 non-profit dedicated to caring for & defending our public lands in Nevada since 1984.

Friends of Nevada Wilderness

We preserve, develop, and promote the assets comprising the Domaine national de Chambord which is on Unesco's world heritage list.

Chambord has aroused admiration and fascination to the world for over 500 years. Placed on France’s first list of historical monuments in 1840, and a UNESCO World Heritage Site since 1981, it is one of the most breathtaking construction of the Renaissance. Far from being a residential palace or a hunting lodge, Chambord embodies the values of humanism, inventiveness and human genius.

Preserving this heritage means constantly questioning how it can be made accessible to the widest possible audience. With this objective in mind, each year new developments and innovative projects are presented to visitors, a rich program of events punctuates the life of the estate, and ecological actions are implemented. The estate is also developing a strategy to diversify its own resources, notably by reviving its vocation as a food-producing farm.

Chambord’s projects are structured around four development priorities: Chambord cultural and artistic, Chambord educational and social, Chambord sustainable and agricultural, and Chambord innovative. To support us in this approach, we are looking for partners who share our values and wish to promote them.

American Friends of Chambord

Sage Steppe Wild uses research, data, advocacy and litigation to protect our public lands and everything that depends on them.

Sage Steppe Wild Foundation

Friends of Stewart Park, with the City of Ithaca, revitalizes and maintains Stewart Park and the Cayuga Waterfront Trail. 

Friends of Stewart Park (FSP) works in partnership with the City of Ithaca, the Wharton Studio Museum, and local community members and organizations to restore Stewart Park’s historic buildings, upgrade park facilities, and support enhanced maintenance. Our work ensures that Stewart Park remains a place where everyone can enjoy the natural beauty of the park; to play, exercise, or celebrate while feeling welcome, accessible, comfortable and safe. FSP achieves this by planning, designing, implementing, and fundraising for a variety of projects that are designed to enhance accessibility and inclusion, encourage a diversity of users, increase biodiversity, and increase sustainability. Projects include building a new inclusive playground, splash pad and bathroom, restoring historic buildings and structures, improving the historic carousel, creating wayfinding and interpretive signage for the park, organizing volunteers, planting and maintaining gardens and much more. 

Friends Of Stewart Park Inc

ICFC conserves nature in priority areas worldwide, partnering with local conservation groups and Indigenous and local communities.

The International Conservation Fund of Canada (ICFC) was founded in 2007 to support conservation in the tropics and other priority areas in Latin America, Asia and Africa.  Our mission is to conserve the world's irreplaceable biodiversity.  Our work provides striking co-benefits in climate mitigation and adaptation and benefits for local and Indigenous communities (livelihoods, environmental, and social benefits).

ICFC finds opportunities for outstanding conservation returns and partners with capable local conservation organizations.  Our field partners know best what needs doing and how to go about it.  They excel at engaging local communities and government relations.  Our work is science based, and the collective experience of our small staff adds value.

ICFC has the capacity to quickly expand its work to take advantage of excellent opportunities in the more than 30 countries in which we work.  With your help, we can do more.  Because ICFC’s administrative and fundraising costs are covered by a core group of donors, **100% of your support is applied to projects**.

In one of the world’s most important conservation efforts, ICFC works with the Kayapo Indigenous people to protect an area of the Brazilian Amazon larger than almost half the world’s countries.  We conserve large (hundreds/thousands of square kilometers) protected areas in Peru, Costa Rica, Kenya and elsewhere and have participated in land acquisitions for more than a dozen private reserves of high conservation value.  In Cambodia we have shown that marine protected areas can restore fisheries and the marine ecosystem.  We have been instrumental in securing a future for several endangered species; our projects protect hundreds of officially threatened species; and we’re safeguarding important wintering sites of Canada’s shorebirds.

**Why the tropics?**  Tropical nature has astonishing biodiversity—the Amazon alone is home to 7,000 tree species (vs. 180 species indigenous to Canada) and a single rainforest reserve in Peru has more bird species than the entire United States. Tropical forests are crucial for addressing climate change, and they generate rainfall and supply water for agriculture and other human needs.  Coastal ecosystems prevent storm damage and are vital to fisheries.  Canada's migratory species depend on tropical wintering areas.  Yet tropical ecosystems are being lost and degraded (95% of deforestation is happening in the tropics).  Conservation works but it is under-funded.

**AWARDS & RECOGNITION**:  ICFC was the top ranked conservation charity in Canada in the Financial Post’s 2017 charity ratings (the last done by FP); is rated five out of five stars by Charity Intelligence Canada; and was a winner of the Canadian Museum of Nature’s 2020 Nature Inspiration Awards.  Our Mali Elephant Project was awarded the prestigious Equator Prize in 2017 by the United Nations.  Our project in Cambodia received the National Geographic Society’s Marine Protection Prize and is a Mission Blue “Hope Spot”.  Project field personnel have received the Disney Conservation Hero Award, the Whitley Award (two individuals), and the Indianapolis Prize.

International Conservation Fund of Canada

Southern Off-Road Bicycle Association is a nonprofit organization focused on recreation, sports, leisure, or athletics. It is based in Cary, NC. It received its nonprofit status in 2001.

Triangle Off-Road Cyclists (TORC)

Southern Off Road Bicycle Association is a nonprofit organization focused on recreation, sports, leisure, or athletics. It is based in Roswell, GA. It received its nonprofit status in 1901.

Roswell Alpharetta Mountain Biking Organization (RAMBO)

Since 1989, SORBA has worked to create, enhance, and preserve great mountain experiences in the Southeastern United States.

**Support Trails. Support Community.**

At SORBA, we believe everyone should have access to the mental, physical, and social benefits that mountain biking provides. Every trail we help build, maintain, and advocate for is a step toward stronger communities, healthier people, and more connection with the outdoors.

Your donation helps power this mission across the Southeast—fueling local chapters, supporting volunteers, and expanding access to public lands through sustainable trail systems.

Whether you ride, hike, run, or simply believe in the value of outdoor spaces, your support makes a lasting impact.

**Donate today and be a part of the movement to build trails and community—together.**

Southern Off-Road Bicycle Association (SORBA)

NE GA SORBA is a non-profit maintaining approximately 110 miles of multi-use trails across 10 counties in northeast Georgia.

Northeast Georgia SORBA began in 2014. We were the first “regional” chapter in SORBA. We were created from the merger of Gainesville SORBA and UC3 SORBA.  Gainesville SORBA was the first SORBA chapter created in the mid 1990’s so we have a long history in advocating and building mountain-bike and multi-use trails. We work with local, state and federal land managers in northeast Georgia to provide mountain bike access on their land.

Northeast Georgia SORBA

Southern Off-Road Bicycle Association is a nonprofit organization focused on recreation, sports, leisure, or athletics. It is based in Evans, GA. It received its nonprofit status in 2001.

This is your chance to support more trails close to home.  Help our dedicated volunteers maintain, protect, preserve, and promote over 100 miles of trails in the Central Savannah River Area!

SORBAcsra (Augusta Aiken Central Savannah River Area)

Northwest NC MTB Alliance is a SORBA Chapter

**Northwest NC MTB Alliance is a chapter of SORBA, the largest nonprofit mountain biking organization in the Southeastern United States.** – promoting land access, trail preservation, and new trail development on federal, state, and local lands in our region. We operate in the geographic area of Northwest NC’s mountains and foothills, including the communities of Boone, Hickory, Lenoir, Marion, Morganton, and Wilkesboro. As a subordinate chapter of SORBA, the Alliance is a non-profit organization.

Northwest North Carolina MTB Alliance

Join us in exploring and building AI for the common good.

Check out what your support makes possible at allenai.org. 

The Allen Institute for AI (Ai2) is a leader in the field of AI, and our mission is to contribute to humanity through high-impact AI research, engineering, and applied technologies. Transparency, accessibility, and collaboration are at the core of our work. As a nonprofit organization, we are able to take on research endeavors that universities can’t and private corporations won’t. 

Founded in 2014, Ai2 is the largest 501c3 nonprofit AI2 research organization in the world. Our team is composed of 200+ world class AI researchers and engineers from around the globe, centered around our Seattle offices where collaborative problem solving drives our impact-related efforts. 

From making AI more accessible to underrepresented communities to protecting wildlife and our oceans, we have several teams at Ai2 taking on some of the world’s biggest challenges.

Aristo: Building systems that can successfully interact with users and demonstrate a deep understanding of the world

AllenNLP: Improving natural language processing systems’ performance and accountability, developing state of the art models, datasets, and tools

PRIOR: Seeking to advance computer vision to create AI systems that see, explore, learn, and reason about the world

Semantic Scholar: A free, AI-powered research tool for scientific literature, accelerating scientific breakthroughs by providing a better way to discover new knowledge and key insights

Climate Modeling: Creating faster, more efficient, modernized open-source models to advance the important research into global climate model projections

EarthRanger: A free software solution that aids protected area managers, ecologists, and biologists in making more informed operational decisions for wildlife conservation

Skylight: A platform that helps improve maritime transparency and combat illegal fishing by surfacing suspicious events and providing actionable intelligence to protect our oceans

Wildlands: Delivering AI-backed tools that improve the health and resilience of our wildlands by supporting fire management

Allen Institute for AI (AI2)

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I appreciate the work these organizations do.  We have some of the best trails in the region.

founder @ camp.org, expa.com, uber.com & mix.com

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SORBA Orlando

Rose Creek Initiative

Mission Athletic Club

SORBA Orlando

SORBA Orlando

Friends of Nevada Wilderness

Parks