公(gong)(gong)園(yuan)內現(xian)存長(chang)(chang)城遺跡中,部(bu)分(fen)(fen)地段(duan)屬北齊時期修(xiu)建;而大(da)部(bu)分(fen)(fen)為明(ming)初所修(xiu)。長(chang)(chang)城屬純石(shi)結構單(dan)邊內長(chang)(chang)城,自(zi)東北伸向西南,恰似一條雄偉的石(shi)龍,騰浮于起伏的山(shan)巔之上。公(gong)(gong)園(yuan)每年組(zu)織大(da)型中秋賞(shang)月節、金秋栗子節、九九重陽登(deng)高節等各項活動,登(deng)高遠眺,心曠神(shen)怡(yi)。東邊密云水庫全景(jing)盡收眼底,西望云蒙峽谷一覽無(wu)遺。
北(bei)京云(yun)蒙(meng)山(shan)長(chang)城遺址(zhi)公(gong)園(yuan)位于北(bei)京東(dong)(dong)北(bei)90余公(gong)里(li),密云(yun)水庫之(zhi)西,占地7000余畝。其(qi)地處云(yun)蒙(meng)山(shan)東(dong)(dong)緣,山(shan)形韶秀天成,群峰特起,常隱于云(yun)霧之(zhi)中,素有(you)“北(bei)國(guo)黃(huang)山(shan)”之(zhi)美譽。現存長(chang)城遺跡據(ju)傳部分地段(duan)(duan)有(you)屬北(bei)齊(qi)時(shi)期(qi)者;而(er)大(da)部分為(wei)明初(chu)所修(xiu),屬薊(ji)鎮邊墻東(dong)(dong)中西三路之(zhi)西路。其(qi)石塘(tang)(tang)嶺段(duan)(duan)北(bei)起石塘(tang)(tang)嶺,南迄(qi)開連(lian)口,長(chang)九十(shi)二里(li),設關(guan)砦十(shi)二,附墻臺三座(zuo),空心敵臺五(wu)十(shi)九座(zuo),初(chu)建于洪武、永樂年間(jian),隆慶、萬(wan)歷(li)年間(jian)又加修(xiu)補改建。
云蒙(meng)山(shan)(shan)長城遺址(zhi)公園墻(qiang)體多(duo)(duo)(duo)以山(shan)(shan)石包砌(qi)(qi),填充夯土,外側疊筑垛(duo)口;敵臺(tai)下(xia)壘條(tiao)石,上(shang)砌(qi)(qi)青磚;關(guan)砦城置于水陸要(yao)沖(chong)。清代唯用關(guan)砦城而(er)長城失(shi)修,墻(qiang)體上(shang)半部多(duo)(duo)(duo)有(you)殘(can)缺,平添(tian)幾分滄桑之(zhi)色(se);然下(xia)半部多(duo)(duo)(duo)保存完(wan)整,盤(pan)旋起伏(fu)于山(shan)(shan)谷之(zhi)間,已與(yu)之(zhi)渾(hun)然融(rong)為一(yi)體,不容不得(de)稍加修飾,其白河之(zhi)南(nan)水谷山(shan)(shan)亦(yi)稱滴溜褂山(shan)(shan),懸崖西向,墻(qiang)體依勢作南(nan)北(bei)蜿蜒(yan)狀(zhuang),連(lian)以三道邊樓(lou)(lou)、將軍樓(lou)(lou)、四方樓(lou)(lou)等三座(zuo)敵臺(tai)及圓形烽火臺(tai),今又得(de)稱四座(zuo)樓(lou)(lou)山(shan)(shan)。
云(yun)(yun)蒙(meng)山(shan)長城(cheng)遺(yi)址公園長城(cheng)南跨清溪(今(jin)稱(cheng)云(yun)(yun)蒙(meng)峽(xia)),東(dong)水谷關(guan)(guan)城(cheng)及(ji)古水關(guan)(guan)遺(yi)址猶存(cun)(今(jin)栗林(lin)度假山(shan)莊(zhuang)(zhuang)南六(liu)里許)清康熙(xi)年間,有宋代名臣范仲淹第十(shi)九世孫、兵部尚書(shu)范承勛致仕后“數策仗登其(qi)巔,審(shen)其(qi)氣象(xiang)軒豁,城(cheng)郭完固”,而擇(ze)青甸溪流之(zhi)北建清溪山(shan)莊(zhuang)(zhuang)(在今(jin)栗林(lin)度假山(shan)莊(zhuang)(zhuang)東(dong)六(liu)里許庫區)。今(jin)山(shan)溪城(cheng)郭依(yi)稀可(ke)辨,而更(geng)得見密(mi)云(yun)(yun)水庫之(zhi)大觀。