Cards Pond

[2][3] According to the Rhode Island Sea Grant program, "[i]ts breachway is only intermittently open to the sea", and it receives large quantities of freshwater from Moonstone Stream; only two other salt ponds, Point Judith and Greenhill, have significant streams flowing into them.

It is partially within the Trustom Pond National Wildlife Refuge,[1] which is inhabited by over 360 species of animals.

[citation needed] The pond averages 1.3 ft (0.40 m) deep, and has a salinity level of approximately 4 parts per thousand, too low to sustain the growth of eelgrass.

[7] Nests of piping plovers, which are federally designated as a threatened species, have been documented within the watershed.

When the pond threatens to flood a nearby road or surrounding houses, a breach is intentionally created by the U.S.