# High Rock, United States: what it is and when to go > High Rock is a mountain summit in Washington County, Maryland in United States (Carroll Valley), at 559 m above sea level. Interests: Nature and Mountains. The best time to visit is April to October. In June there are 14 h 48 of daylight, and in December, 9 h 12. It has articles in 2 Wikipedias, so it is not one of the busiest places in United States: one to enjoy at a calmer pace. Here is what it is, where it lies, when to come, how to get there and what else is nearby to turn it into a trip. - Address: https://kokai.app/en/paises/america/estados-unidos/high-rock/ - Reviewed on: 2026-10-08 - Language: en ## In a nutshell - **What it is:** Mountain summit in Washington County, Maryland · Nature, Mountains - **Where:** United States - **Elevation:** 559 m - **Best time:** April to October. - **Nearest airport:** EWR Newark, 306 km as the crow flies - **Coordinates:** 39.6951, -77.52249 ## What it is and where High Rock is a mountain summit in Washington County, Maryland in United States (Carroll Valley), at 559 m above sea level. It has articles in 2 Wikipedias, so it is not one of the busiest places in United States: one to enjoy at a calmer pace. It is in [Carroll Valley](https://kokai.app/en/paises/america/estados-unidos/carroll-valley/), where this site lists 30 more places to see, 15 km from the centre. Its coordinates are 39.6951, -77.52249; the nearest main airport is Newark Liberty International Airport (EWR, Newark), 306 km as the crow flies. How to get around United States (train, car, bus) is covered in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#moverse). - [Where it is](https://www.google.com/maps/search/?api=1&query=39.695095%2C-77.52249) - [Directions](https://www.google.com/maps/dir/?api=1&destination=39.695095%2C-77.52249) It is one of the [Nature](https://kokai.app/en/paises/america/estados-unidos/naturaleza/) and [Mountains](https://kokai.app/en/paises/america/estados-unidos/montana/) places in United States. In [Kokai](https://kokai.app/en/) it is already on your trip map next to the places you save yourself, and it goes into a day's plan with one tap. ## When to go The best time to visit High Rock is **April to October**. | Mes | Época | Hours of daylight | | --- | --- | --- | | January | Possible | 9 h 29 | | February | Possible | 10 h 30 | | March | Possible | 11 h 41 | | April | Best time | 13 h 03 | | May | Best time | 14 h 11 | | June | Best time | 14 h 48 | | July | Best time | 14 h 33 | | August | Best time | 13 h 34 | | September | Best time | 12 h 15 | | October | Best time | 10 h 55 | | November | Possible | 9 h 46 | | December | Possible | 9 h 12 | In June there are 14 h 48 of daylight, and in December, 9 h 12. Daylight hours are calculated from the site's latitude for the 15th of each month; when planning a full day on foot they matter as much as the weather. | What you come for | Best time | Possible | | --- | --- | --- | | Nature | April to October | November to March | | Mountains | April to October | November to March | It is not the same trip whatever you come for: High Rock has a different season depending on what you want to do here, and [Kokai](https://kokai.app/en/) puts it in the right month for you. When to go to United States in general, with its festivals and peak seasons, is in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#cuando-ir). ## Before you go to United States To enter United States there are 9 things to sort out before you leave, starting with “Book national parks and cars in advance”: they are all, with their deadlines, in [the United States checklist](https://kokai.app/en/paises/america/estados-unidos/#antes-de-salir). Currency: US dollar (USD); plugs: Type A and B · 120 V · 60 Hz (you need an adapter, and check your devices' voltage); emergencies: 911 for everything. In [Kokai](https://kokai.app/en/) you tick off the checklist inside your trip, and each item reminds you when it is time to do it. ## What is nearby - [Quirauk Mountain](https://kokai.app/en/paises/america/estados-unidos/quirauk-mountain/): Mountain in Washington County, Maryland, United States · 847 m - [Red Heifer Winery](https://kokai.app/en/paises/america/estados-unidos/red-heifer-winery/): Winery · 2.9 km - [Welty's Mill Bridge](https://kokai.app/en/paises/america/estados-unidos/welty-s-mill-bridge/): Bridge in United States of America · 6.4 km - [Catoctin Mountain Park](https://kokai.app/en/paises/america/estados-unidos/catoctin-mountain-park/): U.S. National Park system unit and historic district, in north-central Maryland · 6.8 km - [Catoctin Mountain](https://kokai.app/en/paises/america/estados-unidos/catoctin-mountain/): Mountain ridge in the United States · 7.1 km Distances are as the crow flies. Everything else is in [the United States guide](https://kokai.app/en/paises/america/estados-unidos/). ## More in United States: Nature - [Niagara Falls](https://kokai.app/en/paises/america/estados-unidos/niagara-falls-2/): three waterfalls that straddle the international border between Canada and the United States - [Grand Canyon](https://kokai.app/en/paises/america/estados-unidos/grand-canyon-2/): steep-sided canyon carved by the Colorado River in Arizona, United States - [Yellowstone National Park](https://kokai.app/en/paises/america/estados-unidos/parque-nacional-de-yellowstone/): first national park in the world, located in Wyoming, Montana, and Idaho in the United States - [Denali](https://kokai.app/en/paises/america/estados-unidos/monte-denali/): highest mountain in North America, located in Alaska - [Mount Rushmore](https://kokai.app/en/paises/america/estados-unidos/mount-rushmore/): mountain in South Dakota featuring a sculpture of four US presidents - [Mauna Kea](https://kokai.app/en/paises/america/estados-unidos/mauna-kea/): Hawaiian volcano Every United States place under Nature, each with its season, is on [its page](https://kokai.app/en/paises/america/estados-unidos/naturaleza/). ## Frequently asked questions ### What is High Rock? It is a mountain summit in Washington County, Maryland in United States. It has articles in 2 Wikipedias, so it is not one of the busiest places in United States: one to enjoy at a calmer pace. ### When is the best time to visit High Rock? April to October. In June there are 14 h 48 of daylight, and in December, 9 h 12. ### How do you get to High Rock? The nearest main airport is Newark Liberty International Airport (EWR), 306 km as the crow flies. From there, [directions](https://www.google.com/maps/dir/?api=1&destination=39.695095%2C-77.52249) opens the route on the map, and how to get around United States is explained in [its country guide](https://kokai.app/en/paises/america/estados-unidos/#moverse). ### How do I add it to my trip? With one tap. In Kokai it is already on the United States map, next to the places you save yourself: add it to a day's plan, give it a time and, if you like, get a reminder when you pass nearby. ### What else is around here? Nearby you have [Quirauk Mountain](https://kokai.app/en/paises/america/estados-unidos/quirauk-mountain/), [Red Heifer Winery](https://kokai.app/en/paises/america/estados-unidos/red-heifer-winery/), [Welty's Mill Bridge](https://kokai.app/en/paises/america/estados-unidos/welty-s-mill-bridge/). The rest is in [the United States guide](https://kokai.app/en/paises/america/estados-unidos/). Data from [OpenStreetMap](https://www.openstreetmap.org/node/358241542), licensed under the ODbL, and from [Wikidata](https://www.wikidata.org/wiki/Q31599577), CC0. More about High Rock on [Wikipedia](https://en.wikipedia.org/wiki/High_Rock_(Pen_Mar)). Daylight hours are calculated from the latitude. More in [credits](https://kokai.app/en/aviso/#creditos).