Rubel Castle – Monrovia Historic Downtown loop from Upland

Road cycling routes

United States

California

San Bernardino County

Upland

Rubel Castle – Monrovia Historic Downtown loop from Upland

Moderate

3.2

(8)

riders

Rubel Castle – Monrovia Historic Downtown loop from Upland

03:53

88.5km

690m

Road cycling

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.

Last updated: August 9, 2026

Waypoints

Start point

Train Station

Get Directions

26.7 km

Rubel Castle

Highlight • Castle

Rubel Castle in Glendora, California, is a unique building that was built by Michael Clarke Rubel. Constructed with recycled materials, including stones from local quarries and discarded items, the castle showcases unique architecture.

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35.0 km

End of San Gabriel River Bike Path

Highlight • Cycleway

This marks the end of the San Gabriel River Bike Path but you now have the option to extend your ride. If you wish you can head simply head back to town or carry on up the San Gabriel Canyon Road to make this a classic day ride.

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47.8 km

Monrovia Historic Downtown

Highlight • Historical Site

Old Town Monrovia is a 10‑block historic district centered on Myrtle Avenue, that has brick‑lined sidewalks, vintage lampposts, and boutique shops.

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48.8 km

Monrovia Recreation Park

Highlight • Rest Area

Leafy park with lawns and shaded seating, restrooms, drinking water. Great for a break

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83.2 km

Upland Basin

Highlight • Structure

If you’re riding the Pacific Electric Trail, you’ll pass by Upland Basin, part of the Waterwise Community Center and Chino Basin Water Conservation District. It’s a water reservoir that helps manage stormwater for the area. You can also visit the Waterwise Community Center a few blocks south—they offer free workshops on gardening, irrigation, and more, both online and in person.

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