Maryland Route 75
State highway in Maryland, US
Maryland Route 75 (MD 75) is a state highway in the U.S. state of Maryland. Known for most of its length as Green Valley Road, the state highway runs 28.40 miles (45.71 km) from MD 355 near Hyattstown north to MD 31 in New Windsor. MD 75 serves as the main north–south highway of eastern Frederick County, where it connects Hyattstown with New Market, Libertytown, Johnsville, and the Carroll County town of Union Bridge. The first sections of MD 75 were constructed around New Windsor and between Green Valley and New London in the early 1910s. The latter highway was extended south to Green Valley in the late 1910s. In the early 1920s, MD 75 was constructed between New Windsor and Union Bridge and from Libertytown to Johnsville. The remainder of the state highway was constructed in the late 1920s and early 1930s. MD 75 was relocated between Union Bridge and New Windsor in the early 1960s, around its interchange with Interstate 70 (I-70)/U.S. Route 40 (US 40) in New Market in the early 1970s, and at its northern terminus in New Windsor in 2007.
Route description
MD 75 begins at MD 355 (Urbana Pike) a short distance north of the Frederick–Montgomery county line near Hyattstown, heading northeast on two-lane undivided Green Valley Road. The state highway crosses Bennett Creek and Stillhouse Branch and passes through the village of Green Valley.
“Maryland Route 75” enters the record as state highway in Maryland, US. Crown Archives preserves that source wording while asking what Maryland, Route and State can confirm, complicate or overturn.
Why this record matters
“Maryland Route 75” is worth following because a concise public description often conceals a longer documentary argument. Here, Maryland, Route and State provides the most credible route into that argument.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated May 4, 2025. The linked authority identifier is Q2306814. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2007.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Maryland Route 75”, its source revision and the description used here.
- Expand the search: follow Maryland Route 75 primary sources, Maryland Route 75 archive and Maryland research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Maryland Route 75”?
- What terminology or title could unlock a more precise catalogue search?
- Which institution is responsible for the underlying evidence?
Search terms from this dossier
This entry incorporates text from “Maryland Route 75” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.