It is bordered by Severna Park to the northwest, Cape Saint Claire to the southeast, Annapolis to the southwest, and Lake Shore (a CDP within Pasadena) to the northeast.

Native Americans are known to have resided in the region in pre-Columbian times based on artifacts found in the Ulmstead Point area dating back to the Archaic period (5000–1500 BC).

[6] One of his sons, Thomas Arnold, inherited the land, later working as the local station master for the Baltimore and Annapolis Short Line Railroad.

[7] Residents know the area to have been home to a racetrack in the present-day Revell-Downs planned community and even a rollercoaster and boardwalk in Mago Vista Beach.

Marshes and creeks in the park are home to wildlife found throughout the Chesapeake Bay, including blue crabs, herons, terrapins, rockfish, and eagles.

The Wilmer Stone White Oak in Arnold Park is set to be dedicated as the Maryland State Tree.

It was named for the late Wilmer Stone, a noted forester who once owned the Arnold Park property where it stands.

A portion of the oak was destroyed in 1988, making it jut out to the side in a broken Y formation, or it would have surpassed the National Champion in Virginia, a 427 pointer.

The honored tree stands proudly in the silent Arnold forest, broken only by the calls of ospreys, wrens, blue jays and cardinals.

Deer and fox also populate the woodlands, darting among the black locust trees, wild grape vines and Virginia creeper.

It stands in Arnold's Anne Arundel Community College's west campus on a well-maintained terrace overlooking an outdoor amphitheater.

Behind the statue, five bronze plaques mounted on a stone wall quote King's speeches calling for equal opportunities in education and a just society.