 rose valley is a small, historic borough in delaware county, pennsylvania, united states. its area is  and the population was 944 at the 2000 census. the area was settled by quaker farmers in 1682, and later water mills along ridley creek drove manufacturing in the nineteenth century. in 1901 rose valley was founded as an arts and crafts community by architect will price, who bought  of land around the former rose valley textile mill, and horace traubel. price and traubel were both followers of the henry george's economics (georgism). price also a co-founded arden, delaware, a utopian single tax community based on henry george's economic model. nevertheless the georgist single-tax ideal was never implemented 
Boroughs_in_Delaware_County,_Pennsylvania Boroughs_in_Pennsylvania Historic_districts_in_Pennsylvania Historic_districts_in_the_United_States National_Register_of_Historic_Places_in_Pennsylvania Populated_places_established_in_1920 Populated_places_on_the_Underground_Railroad